Firefox CSS Theme MCP Server: Install & Setup

Install Firefox CSS Theme in Claude Code

Claude Code

claude mcp add firefox-css-theme -- npx -y firefox-css-theme

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "firefox-css-theme": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-css-theme"
      ]
    }
  }
}

MCP for building, inspecting, and live-debugging Firefox CSS themes.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add firefox-css-theme -- npx -y firefox-css-theme

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