# Firefox DevTools Troubleshoot

> Diagnose and fix Firefox DevTools MCP setup issues. Use this if the firefox-devtools-mcp plugin is not working.

## Facts
- Page: https://tashan.sh/capability/plugin-mozilla-firefox-devtools-mcp-firefox-devtools-troubleshoot
- tashan id: plugin:mozilla/firefox-devtools-mcp/firefox-devtools-troubleshoot
- Source: https://github.com/mozilla/firefox-devtools-mcp
- Type: plugin
- Category: other
- tashan score: 40.0 / 100
- Adoption: 7.0
- Upkeep: 93.0
- Freshness: 84.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: NOASSERTION
- Official: no

## Install

```sh
/plugin marketplace add mozilla/firefox-devtools-mcp
/plugin install firefox-devtools-troubleshoot@firefox-devtools-plugins
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.