{
  "slug": "chrome-devtools-mcp-can-selectively-ignore-default-chrome-launch-arguments-a4cbab763318",
  "title": "chrome-devtools-mcp can selectively ignore default Chrome launch arguments",
  "tools": [
    "chrome-devtools-mcp"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-01-15T07:26:03.000Z",
  "announced_at": "2026-01-15T07:26:03.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When the MCP server launches Chrome and you need to omit selected Puppeteer default flags, repeat `--ignore-default-chrome-arg` for each flag to ignore. The option does not apply when connecting to an already running Chrome.",
    "examples": [
      "{\"mcpServers\":{\"chrome-devtools\":{\"command\":\"npx\",\"args\":[\"-y\",\"chrome-devtools-mcp@0.13.0\",\"--ignore-default-chrome-arg=--enable-automation\",\"--ignore-default-chrome-arg=--disable-extensions\"]}}}"
    ],
    "gotchas": [
      "Version: 0.13.0",
      "--ignore-default-chrome-arg / --ignoreDefaultChromeArg: Array option; explicitly disables selected default Chrome arguments. Only applies when chrome-devtools-mcp launches Chrome. Repeat for each argument to ignore.",
      "Prerequisite: Node.js v20.19 or newer maintenance LTS, Chrome current stable or newer, and npm.",
      "Only applies when Chrome is launched by chrome-devtools-mcp.",
      "The option is an array and allows selectively ignoring specific default Chrome launch arguments."
    ]
  },
  "why_it_matters": "When debugging or testing requires Chrome to launch without selected Puppeteer defaults, configure chrome-devtools-mcp with the arguments to ignore.",
  "before": "There was no way to opt out of Puppeteer's default Chrome launch arguments.",
  "sources": [
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/releases/tag/chrome-devtools-mcp-v0.13.0",
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/pull/729",
    "https://github.com/ChromeDevTools/chrome-devtools-mcp/blob/9a51af219fc9216cd463bef9363716283f41f36a/README.md"
  ],
  "rank": 0.90019,
  "judge": {
    "publish": true,
    "judge_model": "codex-cli/gpt-6-luna+typesafe/jev-1.13.0",
    "prompt_version": "extract-v7+enrich-v1+judge-v2x3+jev-publish-v1"
  },
  "review_state": "approved",
  "provenance": {
    "run_id": "ghtools-20261008",
    "verdict_id": "ghtools-20261008:ghtools-20261008-c89252d18edc3b60-0:gate",
    "evidence_hash": "d3c253c19ab8c7338b18c6e1d662de782e68651dda13ec8b2151b967237b769a"
  },
  "review": {
    "draft_hash": "3299d5580f5caa1381731e75ddfe5108fd2dbfc1da67a43d2b7bd4f0fe36f712",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "ghtools-20261008:gate",
    "reason": "2 of 3 judge runs approved with p_yes >= 0.9 (mean 0.90 >= 0.9; 2 needed) and Jev gave 0.78 (>= 0.6 needed)."
  }
}