Merge branch 'ChromeDevTools:main' into resize_bug_465

Author: 0xlakshan

.github/workflows/convetional-commit.yml

@@ -1,6 +1,7 @@
 name: 'Conventional Commit'
 
 on:
+  merge_group:
   pull_request_target:
     types:
       # Defaults
@@ -19,6 +20,7 @@ jobs:
     permissions:
       pull-requests: read
     steps:
-      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
+      - if: github.event_name != 'merge_group'
+        uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/presubmit.yml

@@ -3,6 +3,7 @@ name: Check code before submitting
 permissions: read-all
 
 on:
+  merge_group:
   push:
     branches:
       - main

.github/workflows/run-tests.yml

@@ -3,6 +3,7 @@ name: Compile and run tests
 permissions: read-all
 
 on:
+  merge_group:
   push:
     branches:
       - main

README.md

@@ -91,7 +91,7 @@ Chrome DevTools MCP will not start the browser instance automatically using this
 
 <details>
   <summary>Claude Code</summary>
-    Use the Claude Code CLI to add the Chrome DevTools MCP server (<a href="https://docs.anthropic.com/en/docs/claude-code/mcp">guide</a>):
+    Use the Claude Code CLI to add the Chrome DevTools MCP server (<a href="https://code.claude.com/docs/en/mcp">guide</a>):
 
 ```bash
 claude mcp add chrome-devtools npx chrome-devtools-mcp@latest
@@ -428,6 +428,10 @@ The Chrome DevTools MCP server supports the following configuration option:
   Additional arguments for Chrome. Only applies when Chrome is launched by chrome-devtools-mcp.
   - **Type:** array
 
+- **`--ignoreDefaultChromeArg`/ `--ignore-default-chrome-arg`**
+  Explicitly disable default arguments for Chrome. Only applies when Chrome is launched by chrome-devtools-mcp.
+  - **Type:** array
+
 - **`--categoryEmulation`/ `--category-emulation`**
   Set to false to exclude tools related to emulation.
   - **Type:** boolean

package-lock.json

@@ -61,7 +61,7 @@
     "eslint-plugin-import": "^2.32.0",
     "globals": "^17.0.0",
     "prettier": "^3.6.2",
-    "puppeteer": "24.34.0",
+    "puppeteer": "24.35.0",
     "rollup": "4.55.1",
     "rollup-plugin-cleanup": "^3.2.1",
     "rollup-plugin-license": "^3.6.0",

package.json

@@ -142,7 +142,8 @@ interface McpLaunchOptions {
     width: number;
     height: number;
   };
-  args?: string[];
+  chromeArgs?: string[];
+  ignoreDefaultChromeArgs?: string[];
   devtools: boolean;
 }
 
@@ -167,9 +168,12 @@ export async function launch(options: McpLaunchOptions): Promise<Browser> {
   }
 
   const args: LaunchOptions['args'] = [
-    ...(options.args ?? []),
+    ...(options.chromeArgs ?? []),
     '--hide-crash-restore-bubble',
   ];
+  const ignoreDefaultArgs: LaunchOptions['ignoreDefaultArgs'] =
+    options.ignoreDefaultChromeArgs ?? false;
+
   if (headless) {
     args.push('--screen-info={3840x2160}');
   }
@@ -194,6 +198,7 @@ export async function launch(options: McpLaunchOptions): Promise<Browser> {
       pipe: true,
       headless,
       args,
+      ignoreDefaultArgs: ignoreDefaultArgs,
       acceptInsecureCerts: options.acceptInsecureCerts,
       handleDevToolsAsPage: true,
     });

src/browser.ts

@@ -168,6 +168,11 @@ export const cliOptions = {
     describe:
       'Additional arguments for Chrome. Only applies when Chrome is launched by chrome-devtools-mcp.',
   },
+  ignoreDefaultChromeArg: {
+    type: 'array',
+    describe:
+      'Explicitly disable default arguments for Chrome. Only applies when Chrome is launched by chrome-devtools-mcp.',
+  },
   categoryEmulation: {
     type: 'boolean',
     default: true,
@@ -229,6 +234,10 @@ export function parseArguments(version: string, argv = process.argv) {
         `$0 --chrome-arg='--no-sandbox' --chrome-arg='--disable-setuid-sandbox'`,
         'Launch Chrome without sandboxes. Use with caution.',
       ],
+      [
+        `$0 --ignore-default-chrome-arg='--disable-extensions'`,
+        'Disable the default arguments provided by Puppeteer. Use with caution.',
+      ],
       ['$0 --no-category-emulation', 'Disable tools in the emulation category'],
       [
         '$0 --no-category-performance',

src/cli.ts

@@ -54,9 +54,12 @@ server.server.setRequestHandler(SetLevelRequestSchema, () => {
 
 let context: McpContext;
 async function getContext(): Promise<McpContext> {
-  const extraArgs: string[] = (args.chromeArg ?? []).map(String);
+  const chromeArgs: string[] = (args.chromeArg ?? []).map(String);
+  const ignoreDefaultChromeArgs: string[] = (
+    args.ignoreDefaultChromeArg ?? []
+  ).map(String);
   if (args.proxyServer) {
-    extraArgs.push(`--proxy-server=${args.proxyServer}`);
+    chromeArgs.push(`--proxy-server=${args.proxyServer}`);
   }
   const devtools = args.experimentalDevtools ?? false;
   const browser =
@@ -78,7 +81,8 @@ async function getContext(): Promise<McpContext> {
           userDataDir: args.userDataDir,
           logFile,
           viewport: args.viewport,
-          args: extraArgs,
+          chromeArgs,
+          ignoreDefaultChromeArgs,
           acceptInsecureCerts: args.acceptInsecureCerts,
           devtools,
         });

src/main.ts

@@ -82,7 +82,7 @@ describe('browser', () => {
       userDataDir: folderPath,
       executablePath: executablePath(),
       devtools: false,
-      args: ['--remote-debugging-port=0'],
+      chromeArgs: ['--remote-debugging-port=0'],
     });
     try {
       const connectedBrowser = await ensureBrowserConnected({