Firefox DevTools MCP
Mozilla-official MCP server for automating Firefox via WebDriver BiDi. Browser automation, console monitoring, network events from Claude.
- Automate browser testing across Firefox alongside other browsers
- Monitor browser console errors during development sessions
- Run cross-browser compatibility checks from your terminal
Mozilla-backed alternative to Playwright for Firefox-specific testing and automation workflows.
QA teams, frontend developers testing in Firefox, cross-browser automation.
https://github.com/mozilla/firefox-devtools-mcp
By mozilla
How to Get It
npx firefox-devtools-mcp@latest
Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.
Trust Signals Source Reviewed
Data & Access
Community Pulse Emerging
Discussed on Reddit
- I built an MCP server that lets Claude control Firefox - a solid alternative to — Reddit · 5 pts
- Vibe-coded a full-featured iOS app over 8 months with 12+ custom skills and MCP — Reddit
2 mentions across 1 sources
Reviewer notes
Source Reviewed review. These are observations, not a security certification.
91 stars, Mozilla-official, v0.9.1. Requires local Firefox. Bot-detection warning in connect-existing mode.
Mozilla-maintained. Local Firefox required — no data leaves machine. Clean dependency chain.
How to evaluate tools before deploying →
Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.
Evaluation
91 stars, Mozilla-official, v0.9.1. Requires local Firefox. Bot-detection warning in connect-existing mode.