Browser Extension MCP Server: Install & Setup

Install Browser Extension in Claude Code

Claude Code

claude mcp add browser-extension -- npx -y mcp-browser-extension

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "browser-extension": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-browser-extension"
      ]
    }
  }
}

Frequently asked questions

What does the Browser Extension MCP server do?

Drive your real Chrome over MCP: real logins and cookies, multi-tab automation, deny-all by default.

Is the Browser Extension MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Browser Extension run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Browser Extension to Claude Code?

Run: claude mcp add browser-extension -- npx -y mcp-browser-extension

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