developer

MCP tool from Firefox Devtools MCP by mozilla

basic plus script, debugging

How to use it

developer is exposed by the Firefox Devtools MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the developer tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Firefox Devtools MCP

$claude mcp add firefox-devtools npx @mozilla/firefox-devtools-mcp@latest

FULL FIREFOX DEVTOOLS MCP LISTING

Other tools in Firefox Devtools MCP (4)

all

every module

basic

(default) — slim plus screenshot, utilities, management, webextension, profiler, screencast

mozilla

developer plus prefs, privileged

slim

pages, snapshot, input, network, console