Firefox DevTools MCP server

Control and debug Firefox: navigate, fill forms, inspect network and console, profile.

Indexed, not yet reviewed

We found Firefox DevTools MCP in the official MCP registry. Our automated check passed on Nov 1, 2026 (it confirms the server is published and reachable), but no one at CuratedMCP has reviewed its code, permissions or credentials handling. Check what it can access before you give it keys. Scan your machine free to see every MCP server you have installed.

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At a glance

Repository: mozilla/firefox-devtools-mcp
GitHub stars: 536
License: Not stated
Last push: Oct 30, 2026
npm package: @mozilla/firefox-devtools-mcp@0.10.7
Website: github.com/mozilla/firefox-devtools-mcp

Environment variable	Required	What it is
FIREFOX_HEADLESS	No	Set to true to run Firefox without a visible window.
START_URL	No	URL to open when the server starts.

Automated check

@mozilla/[email protected] is published on npm
Repository active, pushed this month

This checks that the server is published and reachable. It is not a security review. Source: the official MCP registry (io.github.mozilla/firefox-devtools-mcp) and GitHub.

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