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Preview of FF Browser MCP Bridge

FF Browser MCP Bridge by nullthrix

Connects a browser tab to a local MCP server so an AI agent can drive your real, logged-in browser.

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About this extension
Connects your real, logged-in Firefox to an AI agent — no separate browser profile, no cloud relay, everything stays on your machine.

Unlike headless automation tools, this extension uses your existing Firefox session. Your cookies, logins, and saved credentials work as-is. All automation runs locally — nothing is sent to remote servers.

Requires the companion MCP server (free, open source):

npx ff-browser-mcp-bridge@latest


Add that to your MCP client config (Claude, Cursor, Windsurf, Bob), then click the toolbar icon in the tab you want to control. The badge turns ON when connected.

Source: https://github.com/nullthrix/firefox-mcp-server
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Permissions and data

Required permissions:

  • Access browser tabs
  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.1.0
Size
50.56 KB
Last updated
19 days ago (Oct 11, 2026)
Related Categories
  • Web Development
  • Privacy & Security
License
Apache License 2.0
Version History
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