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How to install Firefox Devtools MCP Moz in VS Code

To install Firefox Devtools MCP Moz in VS Code, click "Add to VS Code" on this page or add the "firefox-devtools-mcp-moz" block under "servers" in .vscode/mcp.json, then pick it in Copilot Chat agent mode.

Built from the published package · server updated 5 days ago

1. 1

   One click (fastest)

   Click the button to open VS Code with this server ready to install.

   Add Firefox Devtools MCP Moz to VS Code
2. 2

   Or add it by hand

   Create .vscode/mcp.json and paste this. Note that VS Code uses "servers", not "mcpServers".

   {
     "servers": {
       "firefox-devtools-mcp-moz": {
         "command": "npx",
         "args": [
           "-y",
           "@mozilla/firefox-devtools-mcp-moz"
         ]
       }
     }
   }

   Copy
3. 3

   Start it in Copilot Chat

   Open Copilot Chat in Agent mode and pick the server from the tools menu.

Config file: .vscode/mcp.json in your workspace

MCP servers run with your permissions. If Firefox Devtools MCP Moz needs an API key, add it under env in the config. Check its README.

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