chore: roll playwright to Jun 10th, v1.53 (#542 )

Co-authored-by: Simon Knott <simonknott@microsoft.com>
chore: mark v0.0.29 (#541 )
2025-06-11 15:53:14 +01:00 · 2025-06-11 12:00:52 +01:00 · 2025-06-08 10:38:24 -07:00 · 2025-06-08 10:37:48 -07:00 · 2025-06-08 10:36:27 -07:00 · 2025-06-05 10:40:03 -07:00
32 changed files with 1437 additions and 519 deletions
--- a/README.md
+++ b/README.md
@@ -52,6 +52,12 @@ After installation, the Playwright MCP server will be available for use with you
 <details>
 <summary><b>Install in Cursor</b></summary>

+#### Click the button to install:
+
+[![Install MCP Server](https://cursor.com/deeplink/mcp-install-dark.svg)](https://cursor.com/install-mcp?name=playwright&config=eyJjb21tYW5kIjoibnB4IEBwbGF5d3JpZ2h0L21jcEBsYXRlc3QifQ%3D%3D)
+
+#### Or install manually:
+
 Go to `Cursor Settings` -> `MCP` -> `Add new MCP Server`. Name to your liking, use `command` type with the command `npx @playwright/mcp`. You can also verify config or add command like arguments via clicking `Edit`.

 ```js
@@ -106,6 +112,27 @@ Follow the MCP install [guide](https://modelcontextprotocol.io/quickstart/user),
 ```
 </details>

+<details>
+<summary><b>Install in Qodo Gen</b></summary>
+
+Open [Qodo Gen](https://docs.qodo.ai/qodo-documentation/qodo-gen) chat panel in VSCode or IntelliJ → Connect more tools → + Add new MCP → Paste the following configuration:
+
+```js
+{
+  "mcpServers": {
+    "playwright": {
+      "command": "npx",
+      "args": [
+        "@playwright/mcp@latest"
+      ]
+    }
+  }
+}
+```
+
+Click <code>Save</code>.
+</details>
+
 ### Configuration

 Playwright MCP server supports following arguments. They can be provided in the JSON configuration above, as a part of the `"args"` list:
@@ -124,6 +151,7 @@ Playwright MCP server supports following arguments. They can be provided in the
  --block-service-workers      block service workers
  --browser <browser>          browser or chrome channel to use, possible
                               values: chrome, firefox, webkit, msedge.
+  --browser-agent <endpoint>   Use browser agent (experimental).
  --caps <caps>                comma-separated list of capabilities to enable,
                               possible values: tabs, pdf, history, wait, files,
                               install. Default is all.
@@ -199,7 +227,7 @@ state [here](https://playwright.dev/docs/auth).
      "args": [
        "@playwright/mcp@latest",
        "--isolated",
-        "--storage-state={path/to/storage.json}
+        "--storage-state={path/to/storage.json}"
      ]
    }
  }
@@ -354,7 +382,7 @@ http.createServer(async (req, res) => {
  // Creates a headless Playwright MCP server with SSE transport
  const connection = await createConnection({ browser: { launchOptions: { headless: true } } });
  const transport = new SSEServerTransport('/messages', res);
-  await connection.connect(transport);
+  await connection.sever.connect(transport);

  // ...
 });
--- a/config.d.ts
+++ b/config.d.ts
@@ -23,6 +23,11 @@ export type Config = {
   * The browser to use.
   */
  browser?: {
+    /**
+     * Use browser agent (experimental).
+     */
+    browserAgent?: string;
+
    /**
     * The type of browser to use.
     */
--- a/index.d.ts
+++ b/index.d.ts
@@ -16,14 +16,13 @@
 */

 import type { Server } from '@modelcontextprotocol/sdk/server/index.js';
-import type { Config } from './config';
-import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
+import type { Config } from './config.js';
+import type { BrowserContext } from 'playwright';

 export type Connection = {
  server: Server;
-  connect(transport: Transport): Promise<void>;
  close(): Promise<void>;
 };

-export declare function createConnection(config?: Config): Promise<Connection>;
+export declare function createConnection(config?: Config, contextGetter?: () => Promise<BrowserContext>): Promise<Connection>;
 export {};
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,19 @@
 {
  "name": "@playwright/mcp",
-  "version": "0.0.27",
+  "version": "0.0.29",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "@playwright/mcp",
-      "version": "0.0.27",
+      "version": "0.0.29",
      "license": "Apache-2.0",
      "dependencies": {
        "@modelcontextprotocol/sdk": "^1.11.0",
        "commander": "^13.1.0",
-        "playwright": "1.53.0-alpha-2025-05-27",
+        "debug": "^4.4.1",
+        "mime": "^4.0.7",
+        "playwright": "1.53.0",
        "zod-to-json-schema": "^3.24.4"
      },
      "bin": {
@@ -20,8 +22,9 @@
      "devDependencies": {
        "@eslint/eslintrc": "^3.2.0",
        "@eslint/js": "^9.19.0",
-        "@playwright/test": "1.53.0-alpha-2025-05-27",
+        "@playwright/test": "1.53.0",
        "@stylistic/eslint-plugin": "^3.0.1",
+        "@types/debug": "^4.1.12",
        "@types/node": "^22.13.10",
        "@typescript-eslint/eslint-plugin": "^8.26.1",
        "@typescript-eslint/parser": "^8.26.1",
@@ -286,13 +289,12 @@
      }
    },
    "node_modules/@playwright/test": {
-      "version": "1.53.0-alpha-2025-05-27",
-      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.53.0-alpha-2025-05-27.tgz",
-      "integrity": "sha512-G2zG56kEQOWhk3nQyPKH5u41jyQw5jx+Kga5huUi7RjBjPEnNtiCMNXMNGCh6dDYCIyQkLJvz/o1H/QN26HLsg==",
+      "version": "1.53.0",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.53.0.tgz",
+      "integrity": "sha512-15hjKreZDcp7t6TL/7jkAo6Df5STZN09jGiv5dbP9A6vMVncXRqE7/B2SncsyOwrkZRBH2i6/TPOL8BVmm3c7w==",
      "dev": true,
-      "license": "Apache-2.0",
      "dependencies": {
-        "playwright": "1.53.0-alpha-2025-05-27"
+        "playwright": "1.53.0"
      },
      "bin": {
        "playwright": "cli.js"
@@ -354,6 +356,16 @@
        "url": "https://github.com/sponsors/jonschlinkert"
      }
    },
+    "node_modules/@types/debug": {
+      "version": "4.1.12",
+      "resolved": "https://registry.npmjs.org/@types/debug/-/debug-4.1.12.tgz",
+      "integrity": "sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/ms": "*"
+      }
+    },
    "node_modules/@types/estree": {
      "version": "1.0.6",
      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.6.tgz",
@@ -375,6 +387,13 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/@types/ms": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/@types/ms/-/ms-2.1.0.tgz",
+      "integrity": "sha512-GsCCIZDE/p3i96vtEqx+7dBUGXrc7zeSK3wwPHIaRThS+9OhWIXRqzs4d6k1SVU8g91DrNRWxWUGhp5KXQb2VA==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/@types/node": {
      "version": "22.13.10",
      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.13.10.tgz",
@@ -834,16 +853,16 @@
      "license": "MIT"
    },
    "node_modules/body-parser": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.1.0.tgz",
-      "integrity": "sha512-/hPxh61E+ll0Ujp24Ilm64cykicul1ypfwjVttduAiEdtnJFvLePSrIPk+HMImtNv5270wOGCb1Tns2rybMkoQ==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
+      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
      "license": "MIT",
      "dependencies": {
        "bytes": "^3.1.2",
        "content-type": "^1.0.5",
        "debug": "^4.4.0",
        "http-errors": "^2.0.0",
-        "iconv-lite": "^0.5.2",
+        "iconv-lite": "^0.6.3",
        "on-finished": "^2.4.1",
        "qs": "^6.14.0",
        "raw-body": "^3.0.0",
@@ -853,44 +872,6 @@
        "node": ">=18"
      }
    },
-    "node_modules/body-parser/node_modules/debug": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
-      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
-      "license": "MIT",
-      "dependencies": {
-        "ms": "^2.1.3"
-      },
-      "engines": {
-        "node": ">=6.0"
-      },
-      "peerDependenciesMeta": {
-        "supports-color": {
-          "optional": true
-        }
-      }
-    },
-    "node_modules/body-parser/node_modules/ms": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "license": "MIT"
-    },
-    "node_modules/body-parser/node_modules/qs": {
-      "version": "6.14.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.0.tgz",
-      "integrity": "sha512-YWWTjgABSKcvs/nWBi9PycY/JiPJqOD4JA6o9Sej2AtvSGarXxKC3OQSk4pAarbdQlKAh5D4FCQkJNkW+GAn3w==",
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "side-channel": "^1.1.0"
-      },
-      "engines": {
-        "node": ">=0.6"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
    "node_modules/brace-expansion": {
      "version": "1.1.11",
      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -1156,12 +1137,12 @@
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    },
    "node_modules/debug": {
-      "version": "4.3.6",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
-      "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==",
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.1.tgz",
+      "integrity": "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ==",
      "license": "MIT",
      "dependencies": {
-        "ms": "2.1.2"
+        "ms": "^2.1.3"
      },
      "engines": {
        "node": ">=6.0"
@@ -1224,16 +1205,6 @@
        "node": ">= 0.8"
      }
    },
-    "node_modules/destroy": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
-      "integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.8",
-        "npm": "1.2.8000 || >= 1.4.16"
-      }
-    },
    "node_modules/doctrine": {
      "version": "2.1.0",
      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
@@ -1769,46 +1740,45 @@
      }
    },
    "node_modules/express": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/express/-/express-5.0.1.tgz",
-      "integrity": "sha512-ORF7g6qGnD+YtUG9yx4DFoqCShNMmUKiXuT5oWMHiOvt/4WFbHC6yCwQMTSBMno7AqntNCAzzcnnjowRkTL9eQ==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/express/-/express-5.1.0.tgz",
+      "integrity": "sha512-DT9ck5YIRU+8GYzzU5kT3eHGA5iL+1Zd0EutOmTE9Dtk+Tvuzd23VBU+ec7HPNSTxXYO55gPV/hq4pSBJDjFpA==",
      "license": "MIT",
      "dependencies": {
        "accepts": "^2.0.0",
-        "body-parser": "^2.0.1",
+        "body-parser": "^2.2.0",
        "content-disposition": "^1.0.0",
-        "content-type": "~1.0.4",
-        "cookie": "0.7.1",
+        "content-type": "^1.0.5",
+        "cookie": "^0.7.1",
        "cookie-signature": "^1.2.1",
-        "debug": "4.3.6",
-        "depd": "2.0.0",
-        "encodeurl": "~2.0.0",
-        "escape-html": "~1.0.3",
-        "etag": "~1.8.1",
-        "finalhandler": "^2.0.0",
-        "fresh": "2.0.0",
-        "http-errors": "2.0.0",
+        "debug": "^4.4.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "finalhandler": "^2.1.0",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
        "merge-descriptors": "^2.0.0",
-        "methods": "~1.1.2",
        "mime-types": "^3.0.0",
-        "on-finished": "2.4.1",
-        "once": "1.4.0",
-        "parseurl": "~1.3.3",
-        "proxy-addr": "~2.0.7",
-        "qs": "6.13.0",
-        "range-parser": "~1.2.1",
-        "router": "^2.0.0",
-        "safe-buffer": "5.2.1",
+        "on-finished": "^2.4.1",
+        "once": "^1.4.0",
+        "parseurl": "^1.3.3",
+        "proxy-addr": "^2.0.7",
+        "qs": "^6.14.0",
+        "range-parser": "^1.2.1",
+        "router": "^2.2.0",
        "send": "^1.1.0",
-        "serve-static": "^2.1.0",
-        "setprototypeof": "1.2.0",
-        "statuses": "2.0.1",
-        "type-is": "^2.0.0",
-        "utils-merge": "1.0.1",
-        "vary": "~1.1.2"
+        "serve-static": "^2.2.0",
+        "statuses": "^2.0.1",
+        "type-is": "^2.0.1",
+        "vary": "^1.1.2"
      },
      "engines": {
        "node": ">= 18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
      }
    },
    "node_modules/express-rate-limit": {
@@ -1930,29 +1900,6 @@
        "node": ">= 0.8"
      }
    },
-    "node_modules/finalhandler/node_modules/debug": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
-      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
-      "license": "MIT",
-      "dependencies": {
-        "ms": "^2.1.3"
-      },
-      "engines": {
-        "node": ">=6.0"
-      },
-      "peerDependenciesMeta": {
-        "supports-color": {
-          "optional": true
-        }
-      }
-    },
-    "node_modules/finalhandler/node_modules/ms": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "license": "MIT"
-    },
    "node_modules/find-root": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/find-root/-/find-root-1.1.0.tgz",
@@ -2037,7 +1984,6 @@
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      "hasInstallScript": true,
-      "license": "MIT",
      "optional": true,
      "os": [
        "darwin"
@@ -2312,12 +2258,12 @@
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    },
    "node_modules/iconv-lite": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.5.2.tgz",
-      "integrity": "sha512-kERHXvpSaB4aU3eANwidg79K8FlrN77m8G9V+0vOR3HYaRifrlwMEpT7ZBJqLSEIHnEgJTHcWK82wwLwwKwtag==",
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
      "license": "MIT",
      "dependencies": {
-        "safer-buffer": ">= 2.1.2 < 3"
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
      },
      "engines": {
        "node": ">=0.10.0"
@@ -2928,15 +2874,6 @@
        "node": ">= 8"
      }
    },
-    "node_modules/methods": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
-      "integrity": "sha512-iclAHeNqNm68zFtnZ0e+1L2yUIdvzNoauKU4WBA3VvH/vPFieF7qfRlwUZU+DA9P9bPXIS90ulxoUoCH23sV2w==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6"
-      }
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    "node_modules/metric-lcs": {
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      "resolved": "https://registry.npmjs.org/metric-lcs/-/metric-lcs-0.1.2.tgz",
@@ -2958,6 +2895,21 @@
        "node": ">=8.6"
      }
    },
+    "node_modules/mime": {
+      "version": "4.0.7",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-4.0.7.tgz",
+      "integrity": "sha512-2OfDPL+e03E0LrXaGYOtTFIYhiuzep94NSsuhrNULq+stylcJedcHdzHtz0atMUuGwJfFYs0YL5xeC/Ca2x0eQ==",
+      "funding": [
+        "https://github.com/sponsors/broofa"
+      ],
+      "license": "MIT",
+      "bin": {
+        "mime": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
    "node_modules/mime-db": {
      "version": "1.54.0",
      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz",
@@ -2968,12 +2920,12 @@
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    "node_modules/mime-types": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.0.tgz",
-      "integrity": "sha512-XqoSHeCGjVClAmoGFG3lVFqQFRIrTVw2OH3axRqAcfaw+gHWIfnASS92AV+Rl/mk0MupgZTRHQOjxY6YVnzK5w==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.1.tgz",
+      "integrity": "sha512-xRc4oEhT6eaBpU1XF7AjpOFD+xQmXNB5OVKwp4tqCuBpHLS/ZbBDrc07mYTDqVMg6PfxUjjNp85O6Cd2Z/5HWA==",
      "license": "MIT",
      "dependencies": {
-        "mime-db": "^1.53.0"
+        "mime-db": "^1.54.0"
      },
      "engines": {
        "node": ">= 0.6"
@@ -3003,9 +2955,9 @@
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    "node_modules/ms": {
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-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
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      "license": "MIT"
    },
    "node_modules/natural-compare": {
@@ -3298,12 +3250,11 @@
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    },
    "node_modules/playwright": {
-      "version": "1.53.0-alpha-2025-05-27",
-      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.53.0-alpha-2025-05-27.tgz",
-      "integrity": "sha512-CD0BTwV5javEJ3hf3rhFJEvR3ZoWsu4HUQFfLH2mtVVe+grGPCP55FnlOjpDnJ5pP4Kibe/ZcmgPDg56ic/y9g==",
-      "license": "Apache-2.0",
+      "version": "1.53.0",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.53.0.tgz",
+      "integrity": "sha512-ghGNnIEYZC4E+YtclRn4/p6oYbdPiASELBIYkBXfaTVKreQUYbMUYQDwS12a8F0/HtIjr/CkGjtwABeFPGcS4Q==",
      "dependencies": {
-        "playwright-core": "1.53.0-alpha-2025-05-27"
+        "playwright-core": "1.53.0"
      },
      "bin": {
        "playwright": "cli.js"
@@ -3316,10 +3267,9 @@
      }
    },
    "node_modules/playwright-core": {
-      "version": "1.53.0-alpha-2025-05-27",
-      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.53.0-alpha-2025-05-27.tgz",
-      "integrity": "sha512-uVxs7YjENoBMFyQhsZWImIBuo/oX7Mu63djhQN3qFz/NdXA/rOAnP73XzfB+VJNwRMKgIOtqHQgjOG3Rl/lm0A==",
-      "license": "Apache-2.0",
+      "version": "1.53.0",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.53.0.tgz",
+      "integrity": "sha512-mGLg8m0pm4+mmtB7M89Xw/GSqoNC+twivl8ITteqvAndachozYe2ZA7srU6uleV1vEdAHYqjq+SV8SNxRRFYBw==",
      "bin": {
        "playwright-core": "cli.js"
      },
@@ -3371,12 +3321,12 @@
      }
    },
    "node_modules/qs": {
-      "version": "6.13.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.13.0.tgz",
-      "integrity": "sha512-+38qI9SOr8tfZ4QmJNplMUxqjbe7LKvvZgWdExBOmd+egZTtjLB67Gu0HRX3u/XOq7UU2Nx6nsjvS16Z9uwfpg==",
+      "version": "6.14.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.0.tgz",
+      "integrity": "sha512-YWWTjgABSKcvs/nWBi9PycY/JiPJqOD4JA6o9Sej2AtvSGarXxKC3OQSk4pAarbdQlKAh5D4FCQkJNkW+GAn3w==",
      "license": "BSD-3-Clause",
      "dependencies": {
-        "side-channel": "^1.0.6"
+        "side-channel": "^1.1.0"
      },
      "engines": {
        "node": ">=0.6"
@@ -3430,18 +3380,6 @@
        "node": ">= 0.8"
      }
    },
-    "node_modules/raw-body/node_modules/iconv-lite": {
-      "version": "0.6.3",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
-      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-      "license": "MIT",
-      "dependencies": {
-        "safer-buffer": ">= 2.1.2 < 3.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/reflect.getprototypeof": {
      "version": "1.0.10",
      "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@@ -3529,11 +3467,13 @@
      }
    },
    "node_modules/router": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/router/-/router-2.1.0.tgz",
-      "integrity": "sha512-/m/NSLxeYEgWNtyC+WtNHCF7jbGxOibVWKnn+1Psff4dJGOfoXP+MuC/f2CwSmyiHdOIzYnYFp4W6GxWfekaLA==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/router/-/router-2.2.0.tgz",
+      "integrity": "sha512-nLTrUKm2UyiL7rlhapu/Zl45FwNgkZGaCpZbIHajDYgwlJCOzLSk+cIPAnsEqV955GjILJnKbdQC1nVPz+gAYQ==",
      "license": "MIT",
      "dependencies": {
+        "debug": "^4.4.0",
+        "depd": "^2.0.0",
        "is-promise": "^4.0.0",
        "parseurl": "^1.3.3",
        "path-to-regexp": "^8.0.0"
@@ -3661,19 +3601,18 @@
      }
    },
    "node_modules/send": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/send/-/send-1.1.0.tgz",
-      "integrity": "sha512-v67WcEouB5GxbTWL/4NeToqcZiAWEq90N888fczVArY8A79J0L4FD7vj5hm3eUMua5EpoQ59wa/oovY6TLvRUA==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/send/-/send-1.2.0.tgz",
+      "integrity": "sha512-uaW0WwXKpL9blXE2o0bRhoL2EGXIrZxQ2ZQ4mgcfoBxdFmQold+qWsD2jLrfZ0trjKL6vOw0j//eAwcALFjKSw==",
      "license": "MIT",
      "dependencies": {
        "debug": "^4.3.5",
-        "destroy": "^1.2.0",
        "encodeurl": "^2.0.0",
        "escape-html": "^1.0.3",
        "etag": "^1.8.1",
-        "fresh": "^0.5.2",
+        "fresh": "^2.0.0",
        "http-errors": "^2.0.0",
-        "mime-types": "^2.1.35",
+        "mime-types": "^3.0.1",
        "ms": "^2.1.3",
        "on-finished": "^2.4.1",
        "range-parser": "^1.2.1",
@@ -3683,52 +3622,16 @@
        "node": ">= 18"
      }
    },
-    "node_modules/send/node_modules/fresh": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
-      "integrity": "sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
-    "node_modules/send/node_modules/mime-db": {
-      "version": "1.52.0",
-      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
-      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
-    "node_modules/send/node_modules/mime-types": {
-      "version": "2.1.35",
-      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
-      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
-      "license": "MIT",
-      "dependencies": {
-        "mime-db": "1.52.0"
-      },
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
-    "node_modules/send/node_modules/ms": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "license": "MIT"
-    },
    "node_modules/serve-static": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.1.0.tgz",
-      "integrity": "sha512-A3We5UfEjG8Z7VkDv6uItWw6HY2bBSBJT1KtVESn6EOoOr2jAxNhxWCLY3jDE2WcuHXByWju74ck3ZgLwL8xmA==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.2.0.tgz",
+      "integrity": "sha512-61g9pCh0Vnh7IutZjtLGGpTA355+OPn2TyDv/6ivP2h/AdAVX9azsoxmg2/M6nZeQZNYBEwIcsne1mJd9oQItQ==",
      "license": "MIT",
      "dependencies": {
        "encodeurl": "^2.0.0",
        "escape-html": "^1.0.3",
        "parseurl": "^1.3.3",
-        "send": "^1.0.0"
+        "send": "^1.2.0"
      },
      "engines": {
        "node": ">= 18"
@@ -4061,9 +3964,9 @@
      }
    },
    "node_modules/type-is": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.0.tgz",
-      "integrity": "sha512-gd0sGezQYCbWSbkZr75mln4YBidWUN60+devscpLF5mtRDUpiaTvKpBNrdaCvel1NdR2k6vclXybU5fBd2i+nw==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
      "license": "MIT",
      "dependencies": {
        "content-type": "^1.0.5",
@@ -4211,15 +4114,6 @@
        "punycode": "^2.1.0"
      }
    },
-    "node_modules/utils-merge": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
-      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4.0"
-      }
-    },
    "node_modules/vary": {
      "version": "1.1.2",
      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@playwright/mcp",
-  "version": "0.0.27",
+  "version": "0.0.29",
  "description": "Playwright Tools for MCP",
  "type": "module",
  "repository": {
@@ -24,6 +24,7 @@
    "ctest": "playwright test --project=chrome",
    "ftest": "playwright test --project=firefox",
    "wtest": "playwright test --project=webkit",
+    "run-server": "node lib/browserServer.js",
    "clean": "rm -rf lib",
    "npm-publish": "npm run clean && npm run build && npm run test && npm publish"
  },
@@ -37,14 +38,17 @@
  "dependencies": {
    "@modelcontextprotocol/sdk": "^1.11.0",
    "commander": "^13.1.0",
-    "playwright": "1.53.0-alpha-2025-05-27",
+    "debug": "^4.4.1",
+    "mime": "^4.0.7",
+    "playwright": "1.53.0",
    "zod-to-json-schema": "^3.24.4"
  },
  "devDependencies": {
    "@eslint/eslintrc": "^3.2.0",
    "@eslint/js": "^9.19.0",
-    "@playwright/test": "1.53.0-alpha-2025-05-27",
+    "@playwright/test": "1.53.0",
    "@stylistic/eslint-plugin": "^3.0.1",
+    "@types/debug": "^4.1.12",
    "@types/node": "^22.13.10",
    "@typescript-eslint/eslint-plugin": "^8.26.1",
    "@typescript-eslint/parser": "^8.26.1",
--- a/src/browserContextFactory.ts
+++ b/src/browserContextFactory.ts
@@ -0,0 +1,266 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'node:fs';
+import net from 'node:net';
+import path from 'node:path';
+import os from 'node:os';
+
+import debug from 'debug';
+import * as playwright from 'playwright';
+import { userDataDir } from './fileUtils.js';
+
+import type { FullConfig } from './config.js';
+import type { BrowserInfo, LaunchBrowserRequest } from './browserServer.js';
+
+const testDebug = debug('pw:mcp:test');
+
+export function contextFactory(browserConfig: FullConfig['browser']): BrowserContextFactory {
+  if (browserConfig.remoteEndpoint)
+    return new RemoteContextFactory(browserConfig);
+  if (browserConfig.cdpEndpoint)
+    return new CdpContextFactory(browserConfig);
+  if (browserConfig.isolated)
+    return new IsolatedContextFactory(browserConfig);
+  if (browserConfig.browserAgent)
+    return new BrowserServerContextFactory(browserConfig);
+  return new PersistentContextFactory(browserConfig);
+}
+
+export interface BrowserContextFactory {
+  createContext(): Promise<{ browserContext: playwright.BrowserContext, close: () => Promise<void> }>;
+}
+
+class BaseContextFactory implements BrowserContextFactory {
+  readonly browserConfig: FullConfig['browser'];
+  protected _browserPromise: Promise<playwright.Browser> | undefined;
+  readonly name: string;
+
+  constructor(name: string, browserConfig: FullConfig['browser']) {
+    this.name = name;
+    this.browserConfig = browserConfig;
+  }
+
+  protected async _obtainBrowser(): Promise<playwright.Browser> {
+    if (this._browserPromise)
+      return this._browserPromise;
+    testDebug(`obtain browser (${this.name})`);
+    this._browserPromise = this._doObtainBrowser();
+    void this._browserPromise.then(browser => {
+      browser.on('disconnected', () => {
+        this._browserPromise = undefined;
+      });
+    }).catch(() => {
+      this._browserPromise = undefined;
+    });
+    return this._browserPromise;
+  }
+
+  protected async _doObtainBrowser(): Promise<playwright.Browser> {
+    throw new Error('Not implemented');
+  }
+
+  async createContext(): Promise<{ browserContext: playwright.BrowserContext, close: () => Promise<void> }> {
+    testDebug(`create browser context (${this.name})`);
+    const browser = await this._obtainBrowser();
+    const browserContext = await this._doCreateContext(browser);
+    return { browserContext, close: () => this._closeBrowserContext(browserContext, browser) };
+  }
+
+  protected async _doCreateContext(browser: playwright.Browser): Promise<playwright.BrowserContext> {
+    throw new Error('Not implemented');
+  }
+
+  private async _closeBrowserContext(browserContext: playwright.BrowserContext, browser: playwright.Browser) {
+    testDebug(`close browser context (${this.name})`);
+    if (browser.contexts().length === 1)
+      this._browserPromise = undefined;
+    await browserContext.close().catch(() => {});
+    if (browser.contexts().length === 0) {
+      testDebug(`close browser (${this.name})`);
+      await browser.close().catch(() => {});
+    }
+  }
+}
+
+class IsolatedContextFactory extends BaseContextFactory {
+  constructor(browserConfig: FullConfig['browser']) {
+    super('isolated', browserConfig);
+  }
+
+  protected override async _doObtainBrowser(): Promise<playwright.Browser> {
+    await injectCdpPort(this.browserConfig);
+    const browserType = playwright[this.browserConfig.browserName];
+    return browserType.launch({
+      ...this.browserConfig.launchOptions,
+      handleSIGINT: false,
+      handleSIGTERM: false,
+    }).catch(error => {
+      if (error.message.includes('Executable doesn\'t exist'))
+        throw new Error(`Browser specified in your config is not installed. Either install it (likely) or change the config.`);
+      throw error;
+    });
+  }
+
+  protected override async _doCreateContext(browser: playwright.Browser): Promise<playwright.BrowserContext> {
+    return browser.newContext(this.browserConfig.contextOptions);
+  }
+}
+
+class CdpContextFactory extends BaseContextFactory {
+  constructor(browserConfig: FullConfig['browser']) {
+    super('cdp', browserConfig);
+  }
+
+  protected override async _doObtainBrowser(): Promise<playwright.Browser> {
+    return playwright.chromium.connectOverCDP(this.browserConfig.cdpEndpoint!);
+  }
+
+  protected override async _doCreateContext(browser: playwright.Browser): Promise<playwright.BrowserContext> {
+    return this.browserConfig.isolated ? await browser.newContext() : browser.contexts()[0];
+  }
+}
+
+class RemoteContextFactory extends BaseContextFactory {
+  constructor(browserConfig: FullConfig['browser']) {
+    super('remote', browserConfig);
+  }
+
+  protected override async _doObtainBrowser(): Promise<playwright.Browser> {
+    const url = new URL(this.browserConfig.remoteEndpoint!);
+    url.searchParams.set('browser', this.browserConfig.browserName);
+    if (this.browserConfig.launchOptions)
+      url.searchParams.set('launch-options', JSON.stringify(this.browserConfig.launchOptions));
+    return playwright[this.browserConfig.browserName].connect(String(url));
+  }
+
+  protected override async _doCreateContext(browser: playwright.Browser): Promise<playwright.BrowserContext> {
+    return browser.newContext();
+  }
+}
+
+class PersistentContextFactory implements BrowserContextFactory {
+  readonly browserConfig: FullConfig['browser'];
+  private _userDataDirs = new Set<string>();
+
+  constructor(browserConfig: FullConfig['browser']) {
+    this.browserConfig = browserConfig;
+  }
+
+  async createContext(): Promise<{ browserContext: playwright.BrowserContext, close: () => Promise<void> }> {
+    await injectCdpPort(this.browserConfig);
+    testDebug('create browser context (persistent)');
+    const userDataDir = this.browserConfig.userDataDir ?? await this._createUserDataDir();
+
+    this._userDataDirs.add(userDataDir);
+    testDebug('lock user data dir', userDataDir);
+
+    const browserType = playwright[this.browserConfig.browserName];
+    for (let i = 0; i < 5; i++) {
+      try {
+        const browserContext = await browserType.launchPersistentContext(userDataDir, {
+          ...this.browserConfig.launchOptions,
+          ...this.browserConfig.contextOptions,
+          handleSIGINT: false,
+          handleSIGTERM: false,
+        });
+        const close = () => this._closeBrowserContext(browserContext, userDataDir);
+        return { browserContext, close };
+      } catch (error: any) {
+        if (error.message.includes('Executable doesn\'t exist'))
+          throw new Error(`Browser specified in your config is not installed. Either install it (likely) or change the config.`);
+        if (error.message.includes('ProcessSingleton') || error.message.includes('Invalid URL')) {
+          // User data directory is already in use, try again.
+          await new Promise(resolve => setTimeout(resolve, 1000));
+          continue;
+        }
+        throw error;
+      }
+    }
+    throw new Error(`Browser is already in use for ${userDataDir}, use --isolated to run multiple instances of the same browser`);
+  }
+
+  private async _closeBrowserContext(browserContext: playwright.BrowserContext, userDataDir: string) {
+    testDebug('close browser context (persistent)');
+    testDebug('release user data dir', userDataDir);
+    await browserContext.close().catch(() => {});
+    this._userDataDirs.delete(userDataDir);
+    testDebug('close browser context complete (persistent)');
+  }
+
+  private async _createUserDataDir() {
+    let cacheDirectory: string;
+    if (process.platform === 'linux')
+      cacheDirectory = process.env.XDG_CACHE_HOME || path.join(os.homedir(), '.cache');
+    else if (process.platform === 'darwin')
+      cacheDirectory = path.join(os.homedir(), 'Library', 'Caches');
+    else if (process.platform === 'win32')
+      cacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
+    else
+      throw new Error('Unsupported platform: ' + process.platform);
+    const result = path.join(cacheDirectory, 'ms-playwright', `mcp-${this.browserConfig.launchOptions?.channel ?? this.browserConfig?.browserName}-profile`);
+    await fs.promises.mkdir(result, { recursive: true });
+    return result;
+  }
+}
+
+export class BrowserServerContextFactory extends BaseContextFactory {
+  constructor(browserConfig: FullConfig['browser']) {
+    super('persistent', browserConfig);
+  }
+
+  protected override async _doObtainBrowser(): Promise<playwright.Browser> {
+    const response = await fetch(new URL(`/json/launch`, this.browserConfig.browserAgent), {
+      method: 'POST',
+      body: JSON.stringify({
+        browserType: this.browserConfig.browserName,
+        userDataDir: this.browserConfig.userDataDir ?? await this._createUserDataDir(),
+        launchOptions: this.browserConfig.launchOptions,
+        contextOptions: this.browserConfig.contextOptions,
+      } as LaunchBrowserRequest),
+    });
+    const info = await response.json() as BrowserInfo;
+    if (info.error)
+      throw new Error(info.error);
+    return await playwright.chromium.connectOverCDP(`http://localhost:${info.cdpPort}/`);
+  }
+
+  protected override async _doCreateContext(browser: playwright.Browser): Promise<playwright.BrowserContext> {
+    return this.browserConfig.isolated ? await browser.newContext() : browser.contexts()[0];
+  }
+
+  private async _createUserDataDir() {
+    const dir = await userDataDir(this.browserConfig);
+    await fs.promises.mkdir(dir, { recursive: true });
+    return dir;
+  }
+}
+
+async function injectCdpPort(browserConfig: FullConfig['browser']) {
+  if (browserConfig.browserName === 'chromium')
+    (browserConfig.launchOptions as any).cdpPort = await findFreePort();
+}
+
+async function findFreePort() {
+  return new Promise((resolve, reject) => {
+    const server = net.createServer();
+    server.listen(0, () => {
+      const { port } = server.address() as net.AddressInfo;
+      server.close(() => resolve(port));
+    });
+    server.on('error', reject);
+  });
+}
--- a/src/browserServer.ts
+++ b/src/browserServer.ts
@@ -0,0 +1,197 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* eslint-disable no-console */
+
+import net from 'net';
+
+import { program } from 'commander';
+import playwright from 'playwright';
+
+import { HttpServer } from './httpServer.js';
+import { packageJSON } from './package.js';
+
+import type http from 'http';
+
+export type LaunchBrowserRequest = {
+  browserType: string;
+  userDataDir: string;
+  launchOptions: playwright.LaunchOptions;
+  contextOptions: playwright.BrowserContextOptions;
+};
+
+export type BrowserInfo = {
+  browserType: string;
+  userDataDir: string;
+  cdpPort: number;
+  launchOptions: playwright.LaunchOptions;
+  contextOptions: playwright.BrowserContextOptions;
+  error?: string;
+};
+
+type BrowserEntry = {
+  browser?: playwright.Browser;
+  info: BrowserInfo;
+};
+
+class BrowserServer {
+  private _server = new HttpServer();
+  private _entries: BrowserEntry[] = [];
+
+  constructor() {
+    this._setupExitHandler();
+  }
+
+  async start(port: number) {
+    await this._server.start({ port });
+    this._server.routePath('/json/list', (req, res) => {
+      this._handleJsonList(res);
+    });
+    this._server.routePath('/json/launch', async (req, res) => {
+      void this._handleLaunchBrowser(req, res).catch(e => console.error(e));
+    });
+    this._setEntries([]);
+  }
+
+  private _handleJsonList(res: http.ServerResponse) {
+    const list = this._entries.map(browser => browser.info);
+    res.end(JSON.stringify(list));
+  }
+
+  private async _handleLaunchBrowser(req: http.IncomingMessage, res: http.ServerResponse) {
+    const request = await readBody<LaunchBrowserRequest>(req);
+    let info = this._entries.map(entry => entry.info).find(info => info.userDataDir === request.userDataDir);
+    if (!info || info.error)
+      info = await this._newBrowser(request);
+    res.end(JSON.stringify(info));
+  }
+
+  private async _newBrowser(request: LaunchBrowserRequest): Promise<BrowserInfo> {
+    const cdpPort = await findFreePort();
+    (request.launchOptions as any).cdpPort = cdpPort;
+    const info: BrowserInfo = {
+      browserType: request.browserType,
+      userDataDir: request.userDataDir,
+      cdpPort,
+      launchOptions: request.launchOptions,
+      contextOptions: request.contextOptions,
+    };
+
+    const browserType = playwright[request.browserType as 'chromium' | 'firefox' | 'webkit'];
+    const { browser, error } = await browserType.launchPersistentContext(request.userDataDir, {
+      ...request.launchOptions,
+      ...request.contextOptions,
+      handleSIGINT: false,
+      handleSIGTERM: false,
+    }).then(context => {
+      return { browser: context.browser()!, error: undefined };
+    }).catch(error => {
+      return { browser: undefined, error: error.message };
+    });
+    this._setEntries([...this._entries, {
+      browser,
+      info: {
+        browserType: request.browserType,
+        userDataDir: request.userDataDir,
+        cdpPort,
+        launchOptions: request.launchOptions,
+        contextOptions: request.contextOptions,
+        error,
+      },
+    }]);
+    browser?.on('disconnected', () => {
+      this._setEntries(this._entries.filter(entry => entry.browser !== browser));
+    });
+    return info;
+  }
+
+  private _updateReport() {
+    // Clear the current line and move cursor to top of screen
+    process.stdout.write('\x1b[2J\x1b[H');
+    process.stdout.write(`Playwright Browser Server v${packageJSON.version}\n`);
+    process.stdout.write(`Listening on ${this._server.urlPrefix('human-readable')}\n\n`);
+
+    if (this._entries.length === 0) {
+      process.stdout.write('No browsers currently running\n');
+      return;
+    }
+
+    process.stdout.write('Running browsers:\n');
+    for (const entry of this._entries) {
+      const status = entry.browser ? 'running' : 'error';
+      const statusColor = entry.browser ? '\x1b[32m' : '\x1b[31m'; // green for running, red for error
+      process.stdout.write(`${statusColor}${entry.info.browserType}\x1b[0m (${entry.info.userDataDir}) - ${statusColor}${status}\x1b[0m\n`);
+      if (entry.info.error)
+        process.stdout.write(`  Error: ${entry.info.error}\n`);
+    }
+
+  }
+
+  private _setEntries(entries: BrowserEntry[]) {
+    this._entries = entries;
+    this._updateReport();
+  }
+
+  private _setupExitHandler() {
+    let isExiting = false;
+    const handleExit = async () => {
+      if (isExiting)
+        return;
+      isExiting = true;
+      setTimeout(() => process.exit(0), 15000);
+      for (const entry of this._entries)
+        await entry.browser?.close().catch(() => {});
+      process.exit(0);
+    };
+
+    process.stdin.on('close', handleExit);
+    process.on('SIGINT', handleExit);
+    process.on('SIGTERM', handleExit);
+  }
+}
+
+program
+    .name('browser-agent')
+    .option('-p, --port <port>', 'Port to listen on', '9224')
+    .action(async options => {
+      await main(options);
+    });
+
+void program.parseAsync(process.argv);
+
+async function main(options: { port: string }) {
+  const server = new BrowserServer();
+  await server.start(+options.port);
+}
+
+function readBody<T>(req: http.IncomingMessage): Promise<T> {
+  return new Promise((resolve, reject) => {
+    const chunks: Buffer[] = [];
+    req.on('data', (chunk: Buffer) => chunks.push(chunk));
+    req.on('end', () => resolve(JSON.parse(Buffer.concat(chunks).toString())));
+  });
+}
+
+async function findFreePort(): Promise<number> {
+  return new Promise((resolve, reject) => {
+    const server = net.createServer();
+    server.listen(0, () => {
+      const { port } = server.address() as net.AddressInfo;
+      server.close(() => resolve(port));
+    });
+    server.on('error', reject);
+  });
+}
--- a/src/config.ts
+++ b/src/config.ts
@@ -15,7 +15,6 @@
 */

 import fs from 'fs';
-import net from 'net';
 import os from 'os';
 import path from 'path';
 import { devices } from 'playwright';
@@ -29,6 +28,7 @@ export type CLIOptions = {
  blockedOrigins?: string[];
  blockServiceWorkers?: boolean;
  browser?: string;
+  browserAgent?: string;
  caps?: string;
  cdpEndpoint?: string;
  config?: string;
@@ -68,19 +68,21 @@ const defaultConfig: FullConfig = {
    allowedOrigins: undefined,
    blockedOrigins: undefined,
  },
+  server: {},
  outputDir: path.join(os.tmpdir(), 'playwright-mcp-output', sanitizeForFilePath(new Date().toISOString())),
 };

 type BrowserUserConfig = NonNullable<Config['browser']>;

 export type FullConfig = Config & {
-  browser: BrowserUserConfig & {
-    browserName: NonNullable<BrowserUserConfig['browserName']>;
+  browser: Omit<BrowserUserConfig, 'browserName'> & {
+    browserName: 'chromium' | 'firefox' | 'webkit';
    launchOptions: NonNullable<BrowserUserConfig['launchOptions']>;
    contextOptions: NonNullable<BrowserUserConfig['contextOptions']>;
  },
  network: NonNullable<Config['network']>,
  outputDir: string;
+  server: NonNullable<Config['server']>,
 };

 export async function resolveConfig(config: Config): Promise<FullConfig> {
@@ -94,8 +96,6 @@ export async function resolveCLIConfig(cliOptions: CLIOptions): Promise<FullConf
  // Derive artifact output directory from config.outputDir
  if (result.saveTrace)
    result.browser.launchOptions.tracesDir = path.join(result.outputDir, 'traces');
-  if (result.browser.browserName === 'chromium')
-    (result.browser.launchOptions as any).cdpPort = await findFreePort();
  return result;
 }

@@ -169,6 +169,7 @@ export async function configFromCLIOptions(cliOptions: CLIOptions): Promise<Conf

  const result: Config = {
    browser: {
+      browserAgent: cliOptions.browserAgent ?? process.env.PW_BROWSER_AGENT,
      browserName,
      isolated: cliOptions.isolated,
      userDataDir: cliOptions.userDataDir,
@@ -194,17 +195,6 @@ export async function configFromCLIOptions(cliOptions: CLIOptions): Promise<Conf
  return result;
 }

-async function findFreePort() {
-  return new Promise((resolve, reject) => {
-    const server = net.createServer();
-    server.listen(0, () => {
-      const { port } = server.address() as net.AddressInfo;
-      server.close(() => resolve(port));
-    });
-    server.on('error', reject);
-  });
-}
-
 async function loadConfig(configFile: string | undefined): Promise<Config> {
  if (!configFile)
    return {};
@@ -230,6 +220,8 @@ function pickDefined<T extends object>(obj: T | undefined): Partial<T> {

 function mergeConfig(base: FullConfig, overrides: Config): FullConfig {
  const browser: FullConfig['browser'] = {
+    ...pickDefined(base.browser),
+    ...pickDefined(overrides.browser),
    browserName: overrides.browser?.browserName ?? base.browser?.browserName ?? 'chromium',
    isolated: overrides.browser?.isolated ?? base.browser?.isolated ?? false,
    launchOptions: {
@@ -241,9 +233,6 @@ function mergeConfig(base: FullConfig, overrides: Config): FullConfig {
      ...pickDefined(base.browser?.contextOptions),
      ...pickDefined(overrides.browser?.contextOptions),
    },
-    userDataDir: overrides.browser?.userDataDir ?? base.browser?.userDataDir,
-    cdpEndpoint: overrides.browser?.cdpEndpoint ?? base.browser?.cdpEndpoint,
-    remoteEndpoint: overrides.browser?.remoteEndpoint ?? base.browser?.remoteEndpoint,
  };

  if (browser.browserName !== 'chromium' && browser.launchOptions)
@@ -256,6 +245,10 @@ function mergeConfig(base: FullConfig, overrides: Config): FullConfig {
    network: {
      ...pickDefined(base.network),
      ...pickDefined(overrides.network),
-    }
+    },
+    server: {
+      ...pickDefined(base.server),
+      ...pickDefined(overrides.server),
+    },
  } as FullConfig;
 }
--- a/src/connection.ts
+++ b/src/connection.ts
@@ -14,22 +14,24 @@
 * limitations under the License.
 */

-import { Server } from '@modelcontextprotocol/sdk/server/index.js';
+import { Server as McpServer } from '@modelcontextprotocol/sdk/server/index.js';
 import { CallToolRequestSchema, ListToolsRequestSchema, Tool as McpTool } from '@modelcontextprotocol/sdk/types.js';
 import { zodToJsonSchema } from 'zod-to-json-schema';

-import { Context, packageJSON } from './context.js';
+import { Context } from './context.js';
 import { snapshotTools, visionTools } from './tools.js';
+import { packageJSON } from './package.js';

-import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
 import { FullConfig } from './config.js';

-export async function createConnection(config: FullConfig): Promise<Connection> {
+import type { BrowserContextFactory } from './browserContextFactory.js';
+
+export function createConnection(config: FullConfig, browserContextFactory: BrowserContextFactory): Connection {
  const allTools = config.vision ? visionTools : snapshotTools;
  const tools = allTools.filter(tool => !config.capabilities || tool.capability === 'core' || config.capabilities.includes(tool.capability));

-  const context = new Context(tools, config);
-  const server = new Server({ name: 'Playwright', version: packageJSON.version }, {
+  const context = new Context(tools, config, browserContextFactory);
+  const server = new McpServer({ name: 'Playwright', version: packageJSON.version }, {
    capabilities: {
      tools: {},
    }
@@ -74,25 +76,19 @@ export async function createConnection(config: FullConfig): Promise<Connection>
    }
  });

-  const connection = new Connection(server, context);
-  return connection;
+  return new Connection(server, context);
 }

 export class Connection {
-  readonly server: Server;
+  readonly server: McpServer;
  readonly context: Context;

-  constructor(server: Server, context: Context) {
+  constructor(server: McpServer, context: Context) {
    this.server = server;
    this.context = context;
-  }
-
-  async connect(transport: Transport) {
-    await this.server.connect(transport);
-    await new Promise<void>(resolve => {
-      this.server.oninitialized = () => resolve();
-    });
-    this.context.clientVersion = this.server.getClientVersion();
+    this.server.oninitialized = () => {
+      this.context.clientVersion = this.server.getClientVersion();
+    };
  }

  async close() {
--- a/src/context.ts
+++ b/src/context.ts
@@ -14,11 +14,7 @@
 * limitations under the License.
 */

-import fs from 'node:fs';
-import url from 'node:url';
-import os from 'node:os';
-import path from 'node:path';
-
+import debug from 'debug';
 import * as playwright from 'playwright';

 import { callOnPageNoTrace, waitForCompletion } from './tools/utils.js';
@@ -29,20 +25,19 @@ import { outputFile } from './config.js';
 import type { ImageContent, TextContent } from '@modelcontextprotocol/sdk/types.js';
 import type { ModalState, Tool, ToolActionResult } from './tools/tool.js';
 import type { FullConfig } from './config.js';
+import type { BrowserContextFactory } from './browserContextFactory.js';

 type PendingAction = {
  dialogShown: ManualPromise<void>;
 };

-type BrowserContextAndBrowser = {
-  browser?: playwright.Browser;
-  browserContext: playwright.BrowserContext;
-};
+const testDebug = debug('pw:mcp:test');

 export class Context {
  readonly tools: Tool[];
  readonly config: FullConfig;
-  private _browserContextPromise: Promise<BrowserContextAndBrowser> | undefined;
+  private _browserContextPromise: Promise<{ browserContext: playwright.BrowserContext, close: () => Promise<void> }> | undefined;
+  private _browserContextFactory: BrowserContextFactory;
  private _tabs: Tab[] = [];
  private _currentTab: Tab | undefined;
  private _modalStates: (ModalState & { tab: Tab })[] = [];
@@ -50,9 +45,11 @@ export class Context {
  private _downloads: { download: playwright.Download, finished: boolean, outputFile: string }[] = [];
  clientVersion: { name: string; version: string; } | undefined;

-  constructor(tools: Tool[], config: FullConfig) {
+  constructor(tools: Tool[], config: FullConfig, browserContextFactory: BrowserContextFactory) {
    this.tools = tools;
    this.config = config;
+    this._browserContextFactory = browserContextFactory;
+    testDebug('create context');
  }

  clientSupportsImages(): boolean {
@@ -92,7 +89,7 @@ export class Context {

  currentTabOrDie(): Tab {
    if (!this._currentTab)
-      throw new Error('No current snapshot available. Capture a snapshot of navigate to a new location first.');
+      throw new Error('No current snapshot available. Capture a snapshot or navigate to a new location first.');
    return this._currentTab;
  }

@@ -297,15 +294,15 @@ ${code.join('\n')}
    if (!this._browserContextPromise)
      return;

+    testDebug('close context');
+
    const promise = this._browserContextPromise;
    this._browserContextPromise = undefined;

-    await promise.then(async ({ browserContext, browser }) => {
+    await promise.then(async ({ browserContext, close }) => {
      if (this.config.saveTrace)
        await browserContext.tracing.stop();
-      await browserContext.close().then(async () => {
-        await browser?.close();
-      }).catch(() => {});
+      await close();
    });
  }

@@ -333,8 +330,10 @@ ${code.join('\n')}
    return this._browserContextPromise;
  }

-  private async _setupBrowserContext(): Promise<BrowserContextAndBrowser> {
-    const { browser, browserContext } = await this._createBrowserContext();
+  private async _setupBrowserContext(): Promise<{ browserContext: playwright.BrowserContext, close: () => Promise<void> }> {
+    // TODO: move to the browser context factory to make it based on isolation mode.
+    const result = await this._browserContextFactory.createContext();
+    const { browserContext } = result;
    await this._setupRequestInterception(browserContext);
    for (const page of browserContext.pages())
      this._onPageCreated(page);
@@ -347,75 +346,6 @@ ${code.join('\n')}
        sources: false,
      });
    }
-    return { browser, browserContext };
-  }
-
-  private async _createBrowserContext(): Promise<BrowserContextAndBrowser> {
-    if (this.config.browser?.remoteEndpoint) {
-      const url = new URL(this.config.browser?.remoteEndpoint);
-      if (this.config.browser.browserName)
-        url.searchParams.set('browser', this.config.browser.browserName);
-      if (this.config.browser.launchOptions)
-        url.searchParams.set('launch-options', JSON.stringify(this.config.browser.launchOptions));
-      const browser = await playwright[this.config.browser?.browserName ?? 'chromium'].connect(String(url));
-      const browserContext = await browser.newContext();
-      return { browser, browserContext };
-    }
-
-    if (this.config.browser?.cdpEndpoint) {
-      const browser = await playwright.chromium.connectOverCDP(this.config.browser.cdpEndpoint);
-      const browserContext = this.config.browser.isolated ? await browser.newContext() : browser.contexts()[0];
-      return { browser, browserContext };
-    }
-
-    return this.config.browser?.isolated ?
-      await createIsolatedContext(this.config.browser) :
-      await launchPersistentContext(this.config.browser);
+    return result;
  }
 }
-
-async function createIsolatedContext(browserConfig: FullConfig['browser']): Promise<BrowserContextAndBrowser> {
-  try {
-    const browserName = browserConfig?.browserName ?? 'chromium';
-    const browserType = playwright[browserName];
-    const browser = await browserType.launch(browserConfig.launchOptions);
-    const browserContext = await browser.newContext(browserConfig.contextOptions);
-    return { browser, browserContext };
-  } catch (error: any) {
-    if (error.message.includes('Executable doesn\'t exist'))
-      throw new Error(`Browser specified in your config is not installed. Either install it (likely) or change the config.`);
-    throw error;
-  }
-}
-
-async function launchPersistentContext(browserConfig: FullConfig['browser']): Promise<BrowserContextAndBrowser> {
-  try {
-    const browserName = browserConfig.browserName ?? 'chromium';
-    const userDataDir = browserConfig.userDataDir ?? await createUserDataDir({ ...browserConfig, browserName });
-    const browserType = playwright[browserName];
-    const browserContext = await browserType.launchPersistentContext(userDataDir, { ...browserConfig.launchOptions, ...browserConfig.contextOptions });
-    return { browserContext };
-  } catch (error: any) {
-    if (error.message.includes('Executable doesn\'t exist'))
-      throw new Error(`Browser specified in your config is not installed. Either install it (likely) or change the config.`);
-    throw error;
-  }
-}
-
-async function createUserDataDir(browserConfig: FullConfig['browser']) {
-  let cacheDirectory: string;
-  if (process.platform === 'linux')
-    cacheDirectory = process.env.XDG_CACHE_HOME || path.join(os.homedir(), '.cache');
-  else if (process.platform === 'darwin')
-    cacheDirectory = path.join(os.homedir(), 'Library', 'Caches');
-  else if (process.platform === 'win32')
-    cacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
-  else
-    throw new Error('Unsupported platform: ' + process.platform);
-  const result = path.join(cacheDirectory, 'ms-playwright', `mcp-${browserConfig.launchOptions?.channel ?? browserConfig?.browserName}-profile`);
-  await fs.promises.mkdir(result, { recursive: true });
-  return result;
-}
-
-const __filename = url.fileURLToPath(import.meta.url);
-export const packageJSON = JSON.parse(fs.readFileSync(path.join(path.dirname(__filename), '..', 'package.json'), 'utf8'));
--- a/src/fileUtils.ts
+++ b/src/fileUtils.ts
@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import os from 'node:os';
+import path from 'node:path';
+
+import type { FullConfig } from './config.js';
+
+export function cacheDir() {
+  let cacheDirectory: string;
+  if (process.platform === 'linux')
+    cacheDirectory = process.env.XDG_CACHE_HOME || path.join(os.homedir(), '.cache');
+  else if (process.platform === 'darwin')
+    cacheDirectory = path.join(os.homedir(), 'Library', 'Caches');
+  else if (process.platform === 'win32')
+    cacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
+  else
+    throw new Error('Unsupported platform: ' + process.platform);
+  return path.join(cacheDirectory, 'ms-playwright');
+}
+
+export async function userDataDir(browserConfig: FullConfig['browser']) {
+  return path.join(cacheDir(), 'ms-playwright', `mcp-${browserConfig.launchOptions?.channel ?? browserConfig?.browserName}-profile`);
+}
--- a/src/httpServer.ts
+++ b/src/httpServer.ts
@@ -0,0 +1,232 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'fs';
+import path from 'path';
+import http from 'http';
+import net from 'net';
+
+import mime from 'mime';
+
+import { ManualPromise } from './manualPromise.js';
+
+
+export type ServerRouteHandler = (request: http.IncomingMessage, response: http.ServerResponse) => void;
+
+export type Transport = {
+  sendEvent?: (method: string, params: any) => void;
+  close?: () => void;
+  onconnect: () => void;
+  dispatch: (method: string, params: any) => Promise<any>;
+  onclose: () => void;
+};
+
+export class HttpServer {
+  private _server: http.Server;
+  private _urlPrefixPrecise: string = '';
+  private _urlPrefixHumanReadable: string = '';
+  private _port: number = 0;
+  private _routes: { prefix?: string, exact?: string, handler: ServerRouteHandler }[] = [];
+
+  constructor() {
+    this._server = http.createServer(this._onRequest.bind(this));
+    decorateServer(this._server);
+  }
+
+  server() {
+    return this._server;
+  }
+
+  routePrefix(prefix: string, handler: ServerRouteHandler) {
+    this._routes.push({ prefix, handler });
+  }
+
+  routePath(path: string, handler: ServerRouteHandler) {
+    this._routes.push({ exact: path, handler });
+  }
+
+  port(): number {
+    return this._port;
+  }
+
+  private async _tryStart(port: number | undefined, host: string) {
+    const errorPromise = new ManualPromise();
+    const errorListener = (error: Error) => errorPromise.reject(error);
+    this._server.on('error', errorListener);
+
+    try {
+      this._server.listen(port, host);
+      await Promise.race([
+        new Promise(cb => this._server!.once('listening', cb)),
+        errorPromise,
+      ]);
+    } finally {
+      this._server.removeListener('error', errorListener);
+    }
+  }
+
+  async start(options: { port?: number, preferredPort?: number, host?: string } = {}): Promise<void> {
+    const host = options.host || 'localhost';
+    if (options.preferredPort) {
+      try {
+        await this._tryStart(options.preferredPort, host);
+      } catch (e: any) {
+        if (!e || !e.message || !e.message.includes('EADDRINUSE'))
+          throw e;
+        await this._tryStart(undefined, host);
+      }
+    } else {
+      await this._tryStart(options.port, host);
+    }
+
+    const address = this._server.address();
+    if (typeof address === 'string') {
+      this._urlPrefixPrecise = address;
+      this._urlPrefixHumanReadable = address;
+    } else {
+      this._port = address!.port;
+      const resolvedHost = address!.family === 'IPv4' ? address!.address : `[${address!.address}]`;
+      this._urlPrefixPrecise = `http://${resolvedHost}:${address!.port}`;
+      this._urlPrefixHumanReadable = `http://${host}:${address!.port}`;
+    }
+  }
+
+  async stop() {
+    await new Promise(cb => this._server!.close(cb));
+  }
+
+  urlPrefix(purpose: 'human-readable' | 'precise'): string {
+    return purpose === 'human-readable' ? this._urlPrefixHumanReadable : this._urlPrefixPrecise;
+  }
+
+  serveFile(request: http.IncomingMessage, response: http.ServerResponse, absoluteFilePath: string, headers?: { [name: string]: string }): boolean {
+    try {
+      for (const [name, value] of Object.entries(headers || {}))
+        response.setHeader(name, value);
+      if (request.headers.range)
+        this._serveRangeFile(request, response, absoluteFilePath);
+      else
+        this._serveFile(response, absoluteFilePath);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
+  _serveFile(response: http.ServerResponse, absoluteFilePath: string) {
+    const content = fs.readFileSync(absoluteFilePath);
+    response.statusCode = 200;
+    const contentType = mime.getType(path.extname(absoluteFilePath)) || 'application/octet-stream';
+    response.setHeader('Content-Type', contentType);
+    response.setHeader('Content-Length', content.byteLength);
+    response.end(content);
+  }
+
+  _serveRangeFile(request: http.IncomingMessage, response: http.ServerResponse, absoluteFilePath: string) {
+    const range = request.headers.range;
+    if (!range || !range.startsWith('bytes=') || range.includes(', ') || [...range].filter(char => char === '-').length !== 1) {
+      response.statusCode = 400;
+      return response.end('Bad request');
+    }
+
+    // Parse the range header: https://datatracker.ietf.org/doc/html/rfc7233#section-2.1
+    const [startStr, endStr] = range.replace(/bytes=/, '').split('-');
+
+    // Both start and end (when passing to fs.createReadStream) and the range header are inclusive and start counting at 0.
+    let start: number;
+    let end: number;
+    const size = fs.statSync(absoluteFilePath).size;
+    if (startStr !== '' && endStr === '') {
+      // No end specified: use the whole file
+      start = +startStr;
+      end = size - 1;
+    } else if (startStr === '' && endStr !== '') {
+      // No start specified: calculate start manually
+      start = size - +endStr;
+      end = size - 1;
+    } else {
+      start = +startStr;
+      end = +endStr;
+    }
+
+    // Handle unavailable range request
+    if (Number.isNaN(start) || Number.isNaN(end) || start >= size || end >= size || start > end) {
+      // Return the 416 Range Not Satisfiable: https://datatracker.ietf.org/doc/html/rfc7233#section-4.4
+      response.writeHead(416, {
+        'Content-Range': `bytes */${size}`
+      });
+      return response.end();
+    }
+
+    // Sending Partial Content: https://datatracker.ietf.org/doc/html/rfc7233#section-4.1
+    response.writeHead(206, {
+      'Content-Range': `bytes ${start}-${end}/${size}`,
+      'Accept-Ranges': 'bytes',
+      'Content-Length': end - start + 1,
+      'Content-Type': mime.getType(path.extname(absoluteFilePath))!,
+    });
+
+    const readable = fs.createReadStream(absoluteFilePath, { start, end });
+    readable.pipe(response);
+  }
+
+  private _onRequest(request: http.IncomingMessage, response: http.ServerResponse) {
+    if (request.method === 'OPTIONS') {
+      response.writeHead(200);
+      response.end();
+      return;
+    }
+
+    request.on('error', () => response.end());
+    try {
+      if (!request.url) {
+        response.end();
+        return;
+      }
+      const url = new URL('http://localhost' + request.url);
+      for (const route of this._routes) {
+        if (route.exact && url.pathname === route.exact) {
+          route.handler(request, response);
+          return;
+        }
+        if (route.prefix && url.pathname.startsWith(route.prefix)) {
+          route.handler(request, response);
+          return;
+        }
+      }
+      response.statusCode = 404;
+      response.end();
+    } catch (e) {
+      response.end();
+    }
+  }
+}
+
+function decorateServer(server: net.Server) {
+  const sockets = new Set<net.Socket>();
+  server.on('connection', socket => {
+    sockets.add(socket);
+    socket.once('close', () => sockets.delete(socket));
+  });
+
+  const close = server.close;
+  server.close = (callback?: (err?: Error) => void) => {
+    for (const socket of sockets)
+      socket.destroy();
+    sockets.clear();
+    return close.call(server, callback);
+  };
+}
--- a/src/index.ts
+++ b/src/index.ts
@@ -14,12 +14,33 @@
 * limitations under the License.
 */

-import { Connection, createConnection as createConnectionImpl } from './connection.js';
+import { createConnection as createConnectionImpl } from './connection.js';
+import type { Connection } from '../index.js';
 import { resolveConfig } from './config.js';
+import { contextFactory } from './browserContextFactory.js';

 import type { Config } from '../config.js';
+import type { BrowserContext } from 'playwright';
+import type { BrowserContextFactory } from './browserContextFactory.js';

-export async function createConnection(userConfig: Config = {}): Promise<Connection> {
+export async function createConnection(userConfig: Config = {}, contextGetter?: () => Promise<BrowserContext>): Promise<Connection> {
  const config = await resolveConfig(userConfig);
-  return createConnectionImpl(config);
+  const factory = contextGetter ? new SimpleBrowserContextFactory(contextGetter) : contextFactory(config.browser);
+  return createConnectionImpl(config, factory);
+}
+
+class SimpleBrowserContextFactory implements BrowserContextFactory {
+  private readonly _contextGetter: () => Promise<BrowserContext>;
+
+  constructor(contextGetter: () => Promise<BrowserContext>) {
+    this._contextGetter = contextGetter;
+  }
+
+  async createContext(): Promise<{ browserContext: BrowserContext, close: () => Promise<void> }> {
+    const browserContext = await this._contextGetter();
+    return {
+      browserContext,
+      close: () => browserContext.close()
+    };
+  }
 }
--- a/src/package.ts
+++ b/src/package.ts
@@ -0,0 +1,22 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'node:fs';
+import url from 'node:url';
+import path from 'node:path';
+
+const __filename = url.fileURLToPath(import.meta.url);
+export const packageJSON = JSON.parse(fs.readFileSync(path.join(path.dirname(__filename), '..', 'package.json'), 'utf8'));
--- a/src/program.ts
+++ b/src/program.ts
@@ -15,14 +15,13 @@
 */

 import { program } from 'commander';
-
-import { startHttpTransport, startStdioTransport } from './transport.js';
-import { resolveCLIConfig } from './config.js';
 // @ts-ignore
 import { startTraceViewerServer } from 'playwright-core/lib/server';

-import type { Connection } from './connection.js';
-import { packageJSON } from './context.js';
+import { startHttpTransport, startStdioTransport } from './transport.js';
+import { resolveCLIConfig } from './config.js';
+import { Server } from './server.js';
+import { packageJSON } from './package.js';

 program
    .version('Version ' + packageJSON.version)
@@ -31,6 +30,7 @@ program
    .option('--blocked-origins <origins>', 'semicolon-separated list of origins to block the browser from requesting. Blocklist is evaluated before allowlist. If used without the allowlist, requests not matching the blocklist are still allowed.', semicolonSeparatedList)
    .option('--block-service-workers', 'block service workers')
    .option('--browser <browser>', 'browser or chrome channel to use, possible values: chrome, firefox, webkit, msedge.')
+    .option('--browser-agent <endpoint>', 'Use browser agent (experimental).')
    .option('--caps <caps>', 'comma-separated list of capabilities to enable, possible values: tabs, pdf, history, wait, files, install. Default is all.')
    .option('--cdp-endpoint <endpoint>', 'CDP endpoint to connect to.')
    .option('--config <path>', 'path to the configuration file.')
@@ -54,13 +54,13 @@ program
    .option('--vision', 'Run server that uses screenshots (Aria snapshots are used by default)')
    .action(async options => {
      const config = await resolveCLIConfig(options);
-      const connectionList: Connection[] = [];
-      setupExitWatchdog(connectionList);
+      const server = new Server(config);
+      server.setupExitWatchdog();

-      if (options.port)
-        startHttpTransport(config, +options.port, options.host, connectionList);
+      if (config.server.port !== undefined)
+        startHttpTransport(server);
      else
-        await startStdioTransport(config, connectionList);
+        await startStdioTransport(server);

      if (config.saveTrace) {
        const server = await startTraceViewerServer();
@@ -71,21 +71,8 @@ program
      }
    });

-function setupExitWatchdog(connectionList: Connection[]) {
-  const handleExit = async () => {
-    setTimeout(() => process.exit(0), 15000);
-    for (const connection of connectionList)
-      await connection.close();
-    process.exit(0);
-  };
-
-  process.stdin.on('close', handleExit);
-  process.on('SIGINT', handleExit);
-  process.on('SIGTERM', handleExit);
-}
-
 function semicolonSeparatedList(value: string): string[] {
  return value.split(';').map(v => v.trim());
 }

-program.parse(process.argv);
+void program.parseAsync(process.argv);
--- a/src/server.ts
+++ b/src/server.ts
@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { createConnection } from './connection.js';
+import { contextFactory } from './browserContextFactory.js';
+
+import type { FullConfig } from './config.js';
+import type { Connection } from './connection.js';
+import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
+import type { BrowserContextFactory } from './browserContextFactory.js';
+
+export class Server {
+  readonly config: FullConfig;
+  private _connectionList: Connection[] = [];
+  private _browserConfig: FullConfig['browser'];
+  private _contextFactory: BrowserContextFactory;
+
+  constructor(config: FullConfig) {
+    this.config = config;
+    this._browserConfig = config.browser;
+    this._contextFactory = contextFactory(this._browserConfig);
+  }
+
+  async createConnection(transport: Transport): Promise<Connection> {
+    const connection = createConnection(this.config, this._contextFactory);
+    this._connectionList.push(connection);
+    await connection.server.connect(transport);
+    return connection;
+  }
+
+  setupExitWatchdog() {
+    let isExiting = false;
+    const handleExit = async () => {
+      if (isExiting)
+        return;
+      isExiting = true;
+      setTimeout(() => process.exit(0), 15000);
+      await Promise.all(this._connectionList.map(connection => connection.close()));
+      process.exit(0);
+    };
+
+    process.stdin.on('close', handleExit);
+    process.on('SIGINT', handleExit);
+    process.on('SIGTERM', handleExit);
+  }
+}
--- a/src/tab.ts
+++ b/src/tab.ts
@@ -83,11 +83,10 @@ export class Tab {
        || e.message.includes('Download is starting'); // firefox + webkit
      if (!mightBeDownload)
        throw e;
-
      // on chromium, the download event is fired *after* page.goto rejects, so we wait a lil bit
      const download = await Promise.race([
        downloadEvent,
-        new Promise(resolve => setTimeout(resolve, 500)),
+        new Promise(resolve => setTimeout(resolve, 1000)),
      ]);
      if (!download)
        throw e;
--- a/src/transport.ts
+++ b/src/transport.ts
@@ -18,22 +18,20 @@ import http from 'node:http';
 import assert from 'node:assert';
 import crypto from 'node:crypto';

+import debug from 'debug';
 import { SSEServerTransport } from '@modelcontextprotocol/sdk/server/sse.js';
 import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
 import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';

-import { createConnection } from './connection.js';
+import type { Server } from './server.js';

-import type { Connection } from './connection.js';
-import type { FullConfig } from './config.js';
-
-export async function startStdioTransport(config: FullConfig, connectionList: Connection[]) {
-  const connection = await createConnection(config);
-  await connection.connect(new StdioServerTransport());
-  connectionList.push(connection);
+export async function startStdioTransport(server: Server) {
+  await server.createConnection(new StdioServerTransport());
 }

-async function handleSSE(config: FullConfig, req: http.IncomingMessage, res: http.ServerResponse, url: URL, sessions: Map<string, SSEServerTransport>, connectionList: Connection[]) {
+const testDebug = debug('pw:mcp:test');
+
+async function handleSSE(server: Server, req: http.IncomingMessage, res: http.ServerResponse, url: URL, sessions: Map<string, SSEServerTransport>) {
  if (req.method === 'POST') {
    const sessionId = url.searchParams.get('sessionId');
    if (!sessionId) {
@@ -51,15 +49,13 @@ async function handleSSE(config: FullConfig, req: http.IncomingMessage, res: htt
  } else if (req.method === 'GET') {
    const transport = new SSEServerTransport('/sse', res);
    sessions.set(transport.sessionId, transport);
-    const connection = await createConnection(config);
-    await connection.connect(transport);
-    connectionList.push(connection);
+    testDebug(`create SSE session: ${transport.sessionId}`);
+    const connection = await server.createConnection(transport);
    res.on('close', () => {
+      testDebug(`delete SSE session: ${transport.sessionId}`);
      sessions.delete(transport.sessionId);
-      connection.close().catch(e => {
-        // eslint-disable-next-line no-console
-        console.error(e);
-      });
+      // eslint-disable-next-line no-console
+      void connection.close().catch(e => console.error(e));
    });
    return;
  }
@@ -68,7 +64,7 @@ async function handleSSE(config: FullConfig, req: http.IncomingMessage, res: htt
  res.end('Method not allowed');
 }

-async function handleStreamable(config: FullConfig, req: http.IncomingMessage, res: http.ServerResponse, sessions: Map<string, StreamableHTTPServerTransport>, connectionList: Connection[]) {
+async function handleStreamable(server: Server, req: http.IncomingMessage, res: http.ServerResponse, sessions: Map<string, StreamableHTTPServerTransport>) {
  const sessionId = req.headers['mcp-session-id'] as string | undefined;
  if (sessionId) {
    const transport = sessions.get(sessionId);
@@ -91,12 +87,8 @@ async function handleStreamable(config: FullConfig, req: http.IncomingMessage, r
      if (transport.sessionId)
        sessions.delete(transport.sessionId);
    };
-    const connection = await createConnection(config);
-    connectionList.push(connection);
-    await Promise.all([
-      connection.connect(transport),
-      transport.handleRequest(req, res),
-    ]);
+    await server.createConnection(transport);
+    await transport.handleRequest(req, res);
    return;
  }

@@ -104,17 +96,18 @@ async function handleStreamable(config: FullConfig, req: http.IncomingMessage, r
  res.end('Invalid request');
 }

-export function startHttpTransport(config: FullConfig, port: number, hostname: string | undefined, connectionList: Connection[]) {
+export function startHttpTransport(server: Server) {
  const sseSessions = new Map<string, SSEServerTransport>();
  const streamableSessions = new Map<string, StreamableHTTPServerTransport>();
  const httpServer = http.createServer(async (req, res) => {
    const url = new URL(`http://localhost${req.url}`);
    if (url.pathname.startsWith('/mcp'))
-      await handleStreamable(config, req, res, streamableSessions, connectionList);
+      await handleStreamable(server, req, res, streamableSessions);
    else
-      await handleSSE(config, req, res, url, sseSessions, connectionList);
+      await handleSSE(server, req, res, url, sseSessions);
  });
-  httpServer.listen(port, hostname, () => {
+  const { host, port } = server.config.server;
+  httpServer.listen(port, host, () => {
    const address = httpServer.address();
    assert(address, 'Could not bind server socket');
    let url: string;
--- a/tests/browser-server.spec.ts
+++ b/tests/browser-server.spec.ts
@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import path from 'path';
+import url from 'node:url';
+
+import { spawn } from 'child_process';
+import { test as baseTest, expect } from './fixtures.js';
+
+import type { ChildProcess } from 'child_process';
+
+const __filename = url.fileURLToPath(import.meta.url);
+
+const test = baseTest.extend<{ agentEndpoint: (options?: { args?: string[] }) => Promise<{ url: URL, stdout: () => string }> }>({
+  agentEndpoint: async ({}, use) => {
+    let cp: ChildProcess | undefined;
+    await use(async (options?: { args?: string[] }) => {
+      if (cp)
+        throw new Error('Process already running');
+
+      cp = spawn('node', [
+        path.join(path.dirname(__filename), '../lib/browserServer.js'),
+        ...(options?.args || []),
+      ], {
+        stdio: 'pipe',
+        env: {
+          ...process.env,
+          DEBUG: 'pw:mcp:test',
+          DEBUG_COLORS: '0',
+          DEBUG_HIDE_DATE: '1',
+        },
+      });
+      let stdout = '';
+      const url = await new Promise<string>(resolve => cp!.stdout?.on('data', data => {
+        stdout += data.toString();
+        const match = stdout.match(/Listening on (http:\/\/.*)/);
+        if (match)
+          resolve(match[1]);
+      }));
+
+      return { url: new URL(url), stdout: () => stdout };
+    });
+    cp?.kill('SIGTERM');
+  },
+});
+
+test.skip(({ mcpBrowser }) => mcpBrowser !== 'chrome', 'Agent is CDP-only for now');
+
+test('browser lifecycle', async ({ agentEndpoint, startClient, server }) => {
+  const { url: agentUrl } = await agentEndpoint();
+  const { client: client1 } = await startClient({ args: ['--browser-agent', agentUrl.toString()] });
+  expect(await client1.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  })).toContainTextContent('Hello, world!');
+
+  const { client: client2 } = await startClient({ args: ['--browser-agent', agentUrl.toString()] });
+  expect(await client2.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  })).toContainTextContent('Hello, world!');
+
+  await client1.close();
+  await client2.close();
+});
--- a/tests/capabilities.spec.ts
+++ b/tests/capabilities.spec.ts
@@ -77,7 +77,7 @@ test('test vision tool list', async ({ visionClient }) => {
 });

 test('test capabilities', async ({ startClient }) => {
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--caps="core"'],
  });
  const { tools } = await client.listTools();
--- a/tests/cdp.spec.ts
+++ b/tests/cdp.spec.ts
@@ -18,7 +18,7 @@ import { test, expect } from './fixtures.js';

 test('cdp server', async ({ cdpServer, startClient, server }) => {
  await cdpServer.start();
-  const client = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
+  const { client } = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
  expect(await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
@@ -27,7 +27,7 @@ test('cdp server', async ({ cdpServer, startClient, server }) => {

 test('cdp server reuse tab', async ({ cdpServer, startClient, server }) => {
  const browserContext = await cdpServer.start();
-  const client = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
+  const { client } = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });

  const [page] = browserContext.pages();
  await page.goto(server.HELLO_WORLD);
@@ -38,7 +38,7 @@ test('cdp server reuse tab', async ({ cdpServer, startClient, server }) => {
      element: 'Hello, world!',
      ref: 'f0',
    },
-  })).toHaveTextContent(`Error: No current snapshot available. Capture a snapshot of navigate to a new location first.`);
+  })).toHaveTextContent(`Error: No current snapshot available. Capture a snapshot or navigate to a new location first.`);

  expect(await client.callTool({
    name: 'browser_snapshot',
@@ -58,7 +58,7 @@ test('cdp server reuse tab', async ({ cdpServer, startClient, server }) => {
 });

 test('should throw connection error and allow re-connecting', async ({ cdpServer, startClient, server }) => {
-  const client = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
+  const { client } = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });

  server.setContent('/', `
    <title>Title</title>
--- a/tests/config.spec.ts
+++ b/tests/config.spec.ts
@@ -33,7 +33,7 @@ test('config user data dir', async ({ startClient, server }, testInfo) => {
  const configPath = testInfo.outputPath('config.json');
  await fs.promises.writeFile(configPath, JSON.stringify(config, null, 2));

-  const client = await startClient({ args: ['--config', configPath] });
+  const { client } = await startClient({ args: ['--config', configPath] });
  expect(await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.PREFIX },
@@ -54,7 +54,7 @@ test.describe(() => {
    const configPath = testInfo.outputPath('config.json');
    await fs.promises.writeFile(configPath, JSON.stringify(config, null, 2));

-    const client = await startClient({ args: ['--config', configPath] });
+    const { client } = await startClient({ args: ['--config', configPath] });
    expect(await client.callTool({
      name: 'browser_navigate',
      arguments: { url: 'data:text/html,<script>document.title = navigator.userAgent</script>' },
--- a/tests/device.spec.ts
+++ b/tests/device.spec.ts
@@ -17,7 +17,7 @@
 import { test, expect } from './fixtures.js';

 test('--device should work', async ({ startClient, server }) => {
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--device', 'iPhone 15'],
  });

--- a/tests/files.spec.ts
+++ b/tests/files.spec.ts
@@ -101,7 +101,7 @@ The tool "browser_file_upload" can only be used when there is related modal stat
 });

 test('clicking on download link emits download', async ({ startClient, server }, testInfo) => {
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir: testInfo.outputPath('output') },
  });

@@ -125,7 +125,7 @@ test('clicking on download link emits download', async ({ startClient, server },
 });

 test('navigating to download link emits download', async ({ startClient, server, mcpBrowser }, testInfo) => {
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir: testInfo.outputPath('output') },
  });

--- a/tests/fixtures.ts
+++ b/tests/fixtures.ts
@@ -40,7 +40,7 @@ type CDPServer = {
 type TestFixtures = {
  client: Client;
  visionClient: Client;
-  startClient: (options?: { clientName?: string, args?: string[], config?: Config }) => Promise<Client>;
+  startClient: (options?: { clientName?: string, args?: string[], config?: Config }) => Promise<{ client: Client, stderr: () => string }>;
  wsEndpoint: string;
  cdpServer: CDPServer;
  server: TestServer;
@@ -55,20 +55,24 @@ type WorkerFixtures = {
 export const test = baseTest.extend<TestFixtures & TestOptions, WorkerFixtures>({

  client: async ({ startClient }, use) => {
-    await use(await startClient());
+    const { client } = await startClient();
+    await use(client);
  },

  visionClient: async ({ startClient }, use) => {
-    await use(await startClient({ args: ['--vision'] }));
+    const { client } = await startClient({ args: ['--vision'] });
+    await use(client);
  },

  startClient: async ({ mcpHeadless, mcpBrowser, mcpMode }, use, testInfo) => {
-    const userDataDir = testInfo.outputPath('user-data-dir');
+    const userDataDir = mcpMode !== 'docker' ? testInfo.outputPath('user-data-dir') : undefined;
    const configDir = path.dirname(test.info().config.configFile!);
    let client: Client | undefined;

    await use(async options => {
-      const args = ['--user-data-dir', path.relative(configDir, userDataDir)];
+      const args: string[] = [];
+      if (userDataDir)
+        args.push('--user-data-dir', userDataDir);
      if (process.env.CI && process.platform === 'linux')
        args.push('--no-sandbox');
      if (mcpHeadless)
@@ -85,9 +89,15 @@ export const test = baseTest.extend<TestFixtures & TestOptions, WorkerFixtures>(

      client = new Client({ name: options?.clientName ?? 'test', version: '1.0.0' });
      const transport = createTransport(args, mcpMode);
+      let stderr = '';
+      transport.stderr?.on('data', data => {
+        if (process.env.PWMCP_DEBUG)
+          process.stderr.write(data);
+        stderr += data.toString();
+      });
      await client.connect(transport);
      await client.ping();
-      return client;
+      return { client, stderr: () => stderr };
    });

    await client?.close();
@@ -168,7 +178,13 @@ function createTransport(args: string[], mcpMode: TestOptions['mcpMode']) {
    command: 'node',
    args: [path.join(path.dirname(__filename), '../cli.js'), ...args],
    cwd: path.join(path.dirname(__filename), '..'),
-    env: process.env as Record<string, string>,
+    stderr: 'pipe',
+    env: {
+      ...process.env,
+      DEBUG: 'pw:mcp:test',
+      DEBUG_COLORS: '0',
+      DEBUG_HIDE_DATE: '1',
+    },
  });
 }

@@ -225,3 +241,7 @@ export const expect = baseExpect.extend({
    };
  },
 });
+
+export function formatOutput(output: string): string[] {
+  return output.split('\n').map(line => line.replace(/^pw:mcp:test /, '').replace(/user data dir.*/, 'user data dir').trim()).filter(Boolean);
+}
--- a/tests/launch.spec.ts
+++ b/tests/launch.spec.ts
@@ -16,9 +16,10 @@

 import fs from 'fs';

-import { test, expect } from './fixtures.js';
+import { test, expect, formatOutput } from './fixtures.js';

-test('test reopen browser', async ({ client, server }) => {
+test('test reopen browser', async ({ startClient, server }) => {
+  const { client, stderr } = await startClient();
  await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
@@ -32,10 +33,31 @@ test('test reopen browser', async ({ client, server }) => {
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
  })).toContainTextContent(`- generic [ref=e1]: Hello, world!`);
+
+  await client.close();
+
+  if (process.platform === 'win32')
+    return;
+
+  await expect.poll(() => formatOutput(stderr()), { timeout: 0 }).toEqual([
+    'create context',
+    'create browser context (persistent)',
+    'lock user data dir',
+    'close context',
+    'close browser context (persistent)',
+    'release user data dir',
+    'close browser context complete (persistent)',
+    'create browser context (persistent)',
+    'lock user data dir',
+    'close context',
+    'close browser context (persistent)',
+    'release user data dir',
+    'close browser context complete (persistent)',
+  ]);
 });

 test('executable path', async ({ startClient, server }) => {
-  const client = await startClient({ args: [`--executable-path=bogus`] });
+  const { client } = await startClient({ args: [`--executable-path=bogus`] });
  const response = await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
@@ -53,7 +75,7 @@ test('persistent context', async ({ startClient, server }) => {
    </script>
  `, 'text/html');

-  const client = await startClient();
+  const { client } = await startClient();
  const response = await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.PREFIX },
@@ -66,7 +88,7 @@ test('persistent context', async ({ startClient, server }) => {
    name: 'browser_close',
  });

-  const client2 = await startClient();
+  const { client: client2 } = await startClient();
  const response2 = await client2.callTool({
    name: 'browser_navigate',
    arguments: { url: server.PREFIX },
@@ -85,18 +107,18 @@ test('isolated context', async ({ startClient, server }) => {
    </script>
  `, 'text/html');

-  const client = await startClient({ args: [`--isolated`] });
-  const response = await client.callTool({
+  const { client: client1 } = await startClient({ args: [`--isolated`] });
+  const response = await client1.callTool({
    name: 'browser_navigate',
    arguments: { url: server.PREFIX },
  });
  expect(response).toContainTextContent(`Storage: NO`);

-  await client.callTool({
+  await client1.callTool({
    name: 'browser_close',
  });

-  const client2 = await startClient({ args: [`--isolated`] });
+  const { client: client2 } = await startClient({ args: [`--isolated`] });
  const response2 = await client2.callTool({
    name: 'browser_navigate',
    arguments: { url: server.PREFIX },
@@ -123,7 +145,7 @@ test('isolated context with storage state', async ({ startClient, server }, test
    </script>
  `, 'text/html');

-  const client = await startClient({ args: [
+  const { client } = await startClient({ args: [
    `--isolated`,
    `--storage-state=${storageStatePath}`,
  ] });
--- a/tests/pdf.spec.ts
+++ b/tests/pdf.spec.ts
@@ -19,7 +19,7 @@ import fs from 'fs';
 import { test, expect } from './fixtures.js';

 test('save as pdf unavailable', async ({ startClient, server }) => {
-  const client = await startClient({ args: ['--caps="no-pdf"'] });
+  const { client } = await startClient({ args: ['--caps="no-pdf"'] });
  await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
@@ -31,7 +31,7 @@ test('save as pdf unavailable', async ({ startClient, server }) => {
 });

 test('save as pdf', async ({ startClient, mcpBrowser, server }, testInfo) => {
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir: testInfo.outputPath('output') },
  });

@@ -51,7 +51,7 @@ test('save as pdf', async ({ startClient, mcpBrowser, server }, testInfo) => {
 test('save as pdf (filename: output.pdf)', async ({ startClient, mcpBrowser, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');
  test.skip(!!mcpBrowser && !['chromium', 'chrome', 'msedge'].includes(mcpBrowser), 'Save as PDF is only supported in Chromium.');
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir },
  });

--- a/tests/request-blocking.spec.ts
+++ b/tests/request-blocking.spec.ts
@@ -37,7 +37,7 @@ test('default to allow all', async ({ server, client }) => {
 });

 test('blocked works', async ({ startClient }) => {
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--blocked-origins', 'microsoft.com;example.com;playwright.dev']
  });
  const result = await fetchPage(client, 'https://example.com/');
@@ -46,7 +46,7 @@ test('blocked works', async ({ startClient }) => {

 test('allowed works', async ({ server, startClient }) => {
  server.setContent('/ppp', 'content:PPP', 'text/html');
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--allowed-origins', `microsoft.com;${new URL(server.PREFIX).host};playwright.dev`]
  });
  const result = await fetchPage(client, server.PREFIX + 'ppp');
@@ -54,7 +54,7 @@ test('allowed works', async ({ server, startClient }) => {
 });

 test('blocked takes precedence', async ({ startClient }) => {
-  const client = await startClient({
+  const { client } = await startClient({
    args: [
      '--blocked-origins', 'example.com',
      '--allowed-origins', 'example.com',
@@ -65,7 +65,7 @@ test('blocked takes precedence', async ({ startClient }) => {
 });

 test('allowed without blocked blocks all non-explicitly specified origins', async ({ startClient }) => {
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--allowed-origins', 'playwright.dev'],
  });
  const result = await fetchPage(client, 'https://example.com/');
@@ -74,7 +74,7 @@ test('allowed without blocked blocks all non-explicitly specified origins', asyn

 test('blocked without allowed allows non-explicitly specified origins', async ({ server, startClient }) => {
  server.setContent('/ppp', 'content:PPP', 'text/html');
-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--blocked-origins', 'example.com'],
  });
  const result = await fetchPage(client, server.PREFIX + 'ppp');
--- a/tests/screenshot.spec.ts
+++ b/tests/screenshot.spec.ts
@@ -19,7 +19,7 @@ import fs from 'fs';
 import { test, expect } from './fixtures.js';

 test('browser_take_screenshot (viewport)', async ({ startClient, server }, testInfo) => {
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir: testInfo.outputPath('output') },
  });
  expect(await client.callTool({
@@ -45,7 +45,7 @@ test('browser_take_screenshot (viewport)', async ({ startClient, server }, testI
 });

 test('browser_take_screenshot (element)', async ({ startClient, server }, testInfo) => {
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir: testInfo.outputPath('output') },
  });
  expect(await client.callTool({
@@ -76,7 +76,7 @@ test('browser_take_screenshot (element)', async ({ startClient, server }, testIn

 test('--output-dir should work', async ({ startClient, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir },
  });
  expect(await client.callTool({
@@ -98,7 +98,7 @@ for (const raw of [undefined, true]) {
  test(`browser_take_screenshot (raw: ${raw})`, async ({ startClient, server }, testInfo) => {
    const outputDir = testInfo.outputPath('output');
    const ext = raw ? 'png' : 'jpeg';
-    const client = await startClient({
+    const { client } = await startClient({
      config: { outputDir },
    });
    expect(await client.callTool({
@@ -138,7 +138,7 @@ for (const raw of [undefined, true]) {

 test('browser_take_screenshot (filename: "output.jpeg")', async ({ startClient, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');
-  const client = await startClient({
+  const { client } = await startClient({
    config: { outputDir },
  });
  expect(await client.callTool({
@@ -174,7 +174,7 @@ test('browser_take_screenshot (filename: "output.jpeg")', async ({ startClient,

 test('browser_take_screenshot (imageResponses=omit)', async ({ startClient, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');
-  const client = await startClient({
+  const { client } = await startClient({
    config: {
      outputDir,
      imageResponses: 'omit',
@@ -205,7 +205,7 @@ test('browser_take_screenshot (imageResponses=omit)', async ({ startClient, serv
 test('browser_take_screenshot (cursor)', async ({ startClient, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');

-  const client = await startClient({
+  const { client } = await startClient({
    clientName: 'cursor:vscode',
    config: { outputDir },
  });
--- a/tests/sse.spec.ts
+++ b/tests/sse.spec.ts
@@ -14,96 +14,233 @@
 * limitations under the License.
 */

+import fs from 'node:fs';
 import url from 'node:url';
-import http from 'node:http';
-import { spawn } from 'node:child_process';
+
+import { ChildProcess, spawn } from 'node:child_process';
 import path from 'node:path';
-import type { AddressInfo } from 'node:net';
 import { SSEClientTransport } from '@modelcontextprotocol/sdk/client/sse.js';
-import { SSEServerTransport } from '@modelcontextprotocol/sdk/server/sse.js';
 import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js';
 import { Client } from '@modelcontextprotocol/sdk/client/index.js';

-import { createConnection } from '@playwright/mcp';
-
 import { test as baseTest, expect } from './fixtures.js';
+import type { Config } from '../config.d.ts';

 // NOTE: Can be removed when we drop Node.js 18 support and changed to import.meta.filename.
 const __filename = url.fileURLToPath(import.meta.url);

-const test = baseTest.extend<{ serverEndpoint: string }>({
-  serverEndpoint: async ({}, use) => {
-    const cp = spawn('node', [path.join(path.dirname(__filename), '../cli.js'), '--port', '0'], { stdio: 'pipe' });
-    try {
+const test = baseTest.extend<{ serverEndpoint: (options?: { args?: string[], noPort?: boolean }) => Promise<{ url: URL, stderr: () => string }> }>({
+  serverEndpoint: async ({ mcpHeadless }, use, testInfo) => {
+    let cp: ChildProcess | undefined;
+    const userDataDir = testInfo.outputPath('user-data-dir');
+    await use(async (options?: { args?: string[], noPort?: boolean }) => {
+      if (cp)
+        throw new Error('Process already running');
+
+      cp = spawn('node', [
+        path.join(path.dirname(__filename), '../cli.js'),
+        ...(options?.noPort ? [] : ['--port=0']),
+        '--user-data-dir=' + userDataDir,
+        ...(mcpHeadless ? ['--headless'] : []),
+        ...(options?.args || []),
+      ], {
+        stdio: 'pipe',
+        env: {
+          ...process.env,
+          DEBUG: 'pw:mcp:test',
+          DEBUG_COLORS: '0',
+          DEBUG_HIDE_DATE: '1',
+        },
+      });
      let stderr = '';
-      const url = await new Promise<string>(resolve => cp.stderr?.on('data', data => {
+      const url = await new Promise<string>(resolve => cp!.stderr?.on('data', data => {
        stderr += data.toString();
        const match = stderr.match(/Listening on (http:\/\/.*)/);
        if (match)
          resolve(match[1]);
      }));

-      await use(url);
-    } finally {
-      cp.kill();
-    }
+      return { url: new URL(url), stderr: () => stderr };
+    });
+    cp?.kill('SIGTERM');
  },
 });

 test('sse transport', async ({ serverEndpoint }) => {
-  const transport = new SSEClientTransport(new URL(serverEndpoint));
+  const { url } = await serverEndpoint();
+  const transport = new SSEClientTransport(url);
  const client = new Client({ name: 'test', version: '1.0.0' });
  await client.connect(transport);
  await client.ping();
 });

+test('sse transport (config)', async ({ serverEndpoint }) => {
+  const config: Config = {
+    server: {
+      port: 0,
+    }
+  };
+  const configFile = test.info().outputPath('config.json');
+  await fs.promises.writeFile(configFile, JSON.stringify(config, null, 2));
+
+  const { url } = await serverEndpoint({ noPort: true, args: ['--config=' + configFile] });
+  const transport = new SSEClientTransport(url);
+  const client = new Client({ name: 'test', version: '1.0.0' });
+  await client.connect(transport);
+  await client.ping();
+});
+
+test('sse transport browser lifecycle (isolated)', async ({ serverEndpoint, server }) => {
+  const { url, stderr } = await serverEndpoint({ args: ['--isolated'] });
+
+  const transport1 = new SSEClientTransport(url);
+  const client1 = new Client({ name: 'test', version: '1.0.0' });
+  await client1.connect(transport1);
+  await client1.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  await client1.close();
+
+  const transport2 = new SSEClientTransport(url);
+  const client2 = new Client({ name: 'test', version: '1.0.0' });
+  await client2.connect(transport2);
+  await client2.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  await client2.close();
+
+  await expect(async () => {
+    const lines = stderr().split('\n');
+    expect(lines.filter(line => line.match(/create SSE session/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/delete SSE session/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/create context/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/close context/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/create browser context \(isolated\)/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/close browser context \(isolated\)/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/obtain browser \(isolated\)/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/close browser \(isolated\)/)).length).toBe(2);
+  }).toPass();
+});
+
+test('sse transport browser lifecycle (isolated, multiclient)', async ({ serverEndpoint, server }) => {
+  const { url, stderr } = await serverEndpoint({ args: ['--isolated'] });
+
+  const transport1 = new SSEClientTransport(url);
+  const client1 = new Client({ name: 'test', version: '1.0.0' });
+  await client1.connect(transport1);
+  await client1.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+
+  const transport2 = new SSEClientTransport(url);
+  const client2 = new Client({ name: 'test', version: '1.0.0' });
+  await client2.connect(transport2);
+  await client2.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  await client1.close();
+
+  const transport3 = new SSEClientTransport(url);
+  const client3 = new Client({ name: 'test', version: '1.0.0' });
+  await client3.connect(transport3);
+  await client3.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+
+  await client2.close();
+  await client3.close();
+
+  await expect(async () => {
+    const lines = stderr().split('\n');
+    expect(lines.filter(line => line.match(/create SSE session/)).length).toBe(3);
+    expect(lines.filter(line => line.match(/delete SSE session/)).length).toBe(3);
+
+    expect(lines.filter(line => line.match(/create context/)).length).toBe(3);
+    expect(lines.filter(line => line.match(/close context/)).length).toBe(3);
+
+    expect(lines.filter(line => line.match(/create browser context \(isolated\)/)).length).toBe(3);
+    expect(lines.filter(line => line.match(/close browser context \(isolated\)/)).length).toBe(3);
+
+    expect(lines.filter(line => line.match(/obtain browser \(isolated\)/)).length).toBe(1);
+    expect(lines.filter(line => line.match(/close browser \(isolated\)/)).length).toBe(1);
+  }).toPass();
+});
+
+test('sse transport browser lifecycle (persistent)', async ({ serverEndpoint, server }) => {
+  const { url, stderr } = await serverEndpoint();
+
+  const transport1 = new SSEClientTransport(url);
+  const client1 = new Client({ name: 'test', version: '1.0.0' });
+  await client1.connect(transport1);
+  await client1.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  await client1.close();
+
+  const transport2 = new SSEClientTransport(url);
+  const client2 = new Client({ name: 'test', version: '1.0.0' });
+  await client2.connect(transport2);
+  await client2.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  await client2.close();
+
+  await expect(async () => {
+    const lines = stderr().split('\n');
+    expect(lines.filter(line => line.match(/create SSE session/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/delete SSE session/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/create context/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/close context/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/create browser context \(persistent\)/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/close browser context \(persistent\)/)).length).toBe(2);
+
+    expect(lines.filter(line => line.match(/lock user data dir/)).length).toBe(2);
+    expect(lines.filter(line => line.match(/release user data dir/)).length).toBe(2);
+  }).toPass();
+});
+
+test('sse transport browser lifecycle (persistent, multiclient)', async ({ serverEndpoint, server }) => {
+  const { url } = await serverEndpoint();
+
+  const transport1 = new SSEClientTransport(url);
+  const client1 = new Client({ name: 'test', version: '1.0.0' });
+  await client1.connect(transport1);
+  await client1.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+
+  const transport2 = new SSEClientTransport(url);
+  const client2 = new Client({ name: 'test', version: '1.0.0' });
+  await client2.connect(transport2);
+  const response = await client2.callTool({
+    name: 'browser_navigate',
+    arguments: { url: server.HELLO_WORLD },
+  });
+  expect(response.isError).toBe(true);
+  expect(response.content?.[0].text).toContain('use --isolated to run multiple instances of the same browser');
+
+  await client1.close();
+  await client2.close();
+});
+
 test('streamable http transport', async ({ serverEndpoint }) => {
-  const transport = new StreamableHTTPClientTransport(new URL('/mcp', serverEndpoint));
+  const { url } = await serverEndpoint();
+  const transport = new StreamableHTTPClientTransport(new URL('/mcp', url));
  const client = new Client({ name: 'test', version: '1.0.0' });
  await client.connect(transport);
  await client.ping();
  expect(transport.sessionId, 'has session support').toBeDefined();
 });
-
-test('sse transport via public API', async ({ server }, testInfo) => {
-  const userDataDir = testInfo.outputPath('user-data-dir');
-  const sessions = new Map<string, SSEServerTransport>();
-  const mcpServer = http.createServer(async (req, res) => {
-    if (req.method === 'GET') {
-      const connection = await createConnection({
-        browser: {
-          userDataDir,
-          launchOptions: { headless: true }
-        },
-      });
-      const transport = new SSEServerTransport('/sse', res);
-      sessions.set(transport.sessionId, transport);
-      await connection.connect(transport);
-    } else if (req.method === 'POST') {
-      const url = new URL(`http://localhost${req.url}`);
-      const sessionId = url.searchParams.get('sessionId');
-      if (!sessionId) {
-        res.statusCode = 400;
-        return res.end('Missing sessionId');
-      }
-      const transport = sessions.get(sessionId);
-      if (!transport) {
-        res.statusCode = 404;
-        return res.end('Session not found');
-      }
-      void transport.handlePostMessage(req, res);
-    }
-  });
-  await new Promise<void>(resolve => mcpServer.listen(0, () => resolve()));
-  const serverUrl = `http://localhost:${(mcpServer.address() as AddressInfo).port}/sse`;
-  const transport = new SSEClientTransport(new URL(serverUrl));
-  const client = new Client({ name: 'test', version: '1.0.0' });
-  await client.connect(transport);
-  await client.ping();
-  expect(await client.callTool({
-    name: 'browser_navigate',
-    arguments: { url: server.HELLO_WORLD },
-  })).toContainTextContent(`- generic [ref=e1]: Hello, world!`);
-  await client.close();
-  mcpServer.close();
-});
--- a/tests/tabs.spec.ts
+++ b/tests/tabs.spec.ts
@@ -141,7 +141,7 @@ test('reuse first tab when navigating', async ({ startClient, cdpServer, server
  const browserContext = await cdpServer.start();
  const pages = browserContext.pages();

-  const client = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
+  const { client } = await startClient({ args: [`--cdp-endpoint=${cdpServer.endpoint}`] });
  await client.callTool({
    name: 'browser_navigate',
    arguments: { url: server.HELLO_WORLD },
--- a/tests/trace.spec.ts
+++ b/tests/trace.spec.ts
@@ -22,7 +22,7 @@ import { test, expect } from './fixtures.js';
 test('check that trace is saved', async ({ startClient, server }, testInfo) => {
  const outputDir = testInfo.outputPath('output');

-  const client = await startClient({
+  const { client } = await startClient({
    args: ['--save-trace', `--output-dir=${outputDir}`],
  });
Author	SHA1	Message	Date
Dmitry Gozman	0df6d7a441	chore: roll playwright to Jun 10th, v1.53 (#542 ) Co-authored-by: Simon Knott <simonknott@microsoft.com>	2025-06-11 15:53:14 +01:00
Dmitry Gozman	4ea7041ba9	chore: mark v0.0.29 (#541 )	2025-06-11 12:00:52 +01:00
Dan O'Brien	7dae68de78	docs: add instructions for MCP server in Qodo Gen (#530 )	2025-06-08 10:38:24 -07:00
Peter Goldstein	60495ed9b0	docs: include Cursor One-Click in README.md (#531 )	2025-06-08 10:37:48 -07:00
cranemont	0aaef661b1	docs(readme): fix connection method call in programmatic usage example (#532 )	2025-06-08 10:36:27 -07:00
Max Schmitt	abbe7858a2	test: add PWMCP_DEBUG env switch (#523 )	2025-06-05 10:40:03 -07:00
Simon Knott	767af21e02	chore: fix Connection type (#517 ) The external `Connection` type regressed in https://github.com/microsoft/playwright-mcp/pull/490/files#diff-a6be0583428e46844273df76939f02077073da3075716fc57d291a5f2463eaf5, where the `connect()` function was removed but not from the types. I've changed the code so we import from there, similar to how we do it for `config.d.ts`, so this shouldn't happen again.	2025-06-05 08:47:04 +02:00
Pavel Feldman	27c498e0e7	chore: rename browser agent to server (#521 )	2025-06-04 16:43:11 -07:00
Pavel Feldman	0fb9646c4d	chore: experimental agent mode (#516 )	2025-06-04 09:14:50 -07:00
Simon Knott	9728527900	chore: typo (#513 )	2025-06-03 11:10:47 -07:00
Pavel Feldman	675b083db3	chore: mark v0.0.28 (#503 )	2025-06-01 14:30:42 -07:00
Pavel Feldman	0b74cdaaf8	chore: sort out signal handling (#506 )	2025-06-01 14:11:42 -07:00
Pavel Feldman	f31ef598bc	test: verify the log in close/navigate test (#505 )	2025-06-01 12:49:30 -07:00
Pavel Feldman	656779531c	chore: respect server settings from config (#502 )	2025-05-30 18:17:51 -07:00
Pavel Feldman	eec177d3ac	chore: reuse browser in server mode (#495 )	2025-05-30 15:15:37 -07:00
Pavel Feldman	54ed7c3200	chore: refactor server, prepare for browser reuse (#490 )	2025-05-28 16:55:47 -07:00
nabepa	3cd74a824a	docs: fixed typo in README.md (#487 )	2025-05-27 20:33:36 -07:00