mozilla/firefox-devtools-mcp
Model Context Protocol server for Firefox DevTools - enables AI assistants to inspect and control Firefox browser through WebDriver BiDi
ARCHETYPE
Pragmatist
A balanced, no-drama setup: some rules, some tools, nothing extreme.
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# review before running: this installs third-party code
$ claude mcp add firefox-devtools -- npx -y @mozilla/firefox-devtools-mcp@latest --auto-profile --tool-preset developer --pref remote.prefs.recommended=false MCP servers are added to Claude Code at local scope; env vars are shown as YOUR_… placeholders — we never store values. Files are fetched with degit into a separate folder so you can review before merging.
$ claude mcp add firefox-devtools -- npx -y @mozilla/firefox-devtools-mcp@latest --auto-profile --tool-preset developer --pref remote.prefs.recommended=false $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-mcp/skills/browser-automation .claude/skills/browser-automation $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-mcp/skills/debug .claude/skills/debug $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-mcp/skills/navigate .claude/skills/navigate $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-mcp/skills/screenshot .claude/skills/screenshot $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-mcp/skills/web-performance .claude/skills/web-performance $ npx degit mozilla/firefox-devtools-mcp/plugins/firefox-devtools-troubleshoot/skills/diagnose .claude/skills/diagnose
This rig commits no guardrails. Here is the community baseline instead — the deny/ask rules most often found across all 7,204 rigs:
{
"permissions": {
"deny": [
"Read(./.env)",
"Read(**/.env)",
"Read(~/.ssh/**)",
"Bash(rm -rf *)",
"Read(**/*.pem)",
"Bash(rm -rf /)",
"Bash(git push --force:*)",
"Bash(sudo *)",
"Read(.env)",
"Bash(rm -rf /*)",
"Read(./.env.*)",
"Read(~/.aws/**)",
"Bash(git push --force*)",
"Bash(rm -rf:*)",
"Read(**/*.key)",
"Read(**/.env.*)",
"Bash(sudo:*)",
"Bash(git reset --hard*)",
"Bash(git reset --hard:*)",
"Read(.env.*)"
],
"ask": [
"Bash(git push:*)",
"Bash(git push *)",
"Bash(git commit:*)",
"Bash(rm *)",
"Bash(rm:*)",
"Bash(git rebase *)",
"Bash(wget *)",
"Bash(npm publish:*)",
"Bash(git commit *)",
"Bash(gh pr merge *)"
]
}
} MCP servers (1)
| server | source | est. tokens |
|---|---|---|
| @mozilla/firefox-devtools-mcp · "firefox-devtools" | npm | 2.5k |
Skills (6)
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