Firefox DevTools MCP

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.mozilla/firefox-devtools-mcp",
  "description": "Control and debug Firefox: navigate, fill forms, inspect network and console, profile.",
  "title": "Firefox DevTools MCP",
  "repository": {
    "url": "https://github.com/mozilla/firefox-devtools-mcp",
    "source": "github"
  },
  "version": "0.10.5",
  "websiteUrl": "https://github.com/mozilla/firefox-devtools-mcp",
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "@mozilla/firefox-devtools-mcp",
      "version": "0.10.5",
      "transport": {
        "type": "stdio"
      },
      "packageArguments": [
        {
          "description": "Tool modules to expose. Higher presets widen what the agent can do.",
          "format": "string",
          "default": "developer",
          "choices": [
            "slim",
            "basic",
            "developer"
          ],
          "type": "named",
          "name": "--tool-preset"
        }
      ],
      "environmentVariables": [
        {
          "description": "Set to true to run Firefox without a visible window.",
          "format": "boolean",
          "name": "FIREFOX_HEADLESS"
        },
        {
          "description": "URL to open when the server starts.",
          "format": "string",
          "name": "START_URL"
        }
      ]
    }
  ]
}