Firefox Addons MCP Server

by mrfentmen Your server? Claim it

local only

Firefox Addons MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 99 installs a week from npm.

Search Firefox browser extensions on AMO. No key required.

The linked repository no longer exists on GitHub — it was deleted or made private.

Installs per day peak 171 · avg 16 · +16% w/w

a month agotoday

Installs / week

npm · firefox-addons-mcp

—

Stars

on GitHub

—

Last commit

3 releases in 90 days

—

License

language unknown

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add firefox-addons-mcp -- npx -y firefox-addons-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "firefox-addons-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-addons-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.firefox-addons-mcp]
command = "npx"
args = ["-y", "firefox-addons-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "firefox-addons-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-addons-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "firefox-addons-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "firefox-addons-mcp"
      ]
    }
  }
}

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Firefox Addons MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Firefox Addons MCP?

Firefox Addons MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package firefox-addons-mcp was installed 99 times last week.

Is Firefox Addons MCP still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Firefox Addons MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls firefox-addons-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Firefox Addons MCP?

The npm package firefox-addons-mcp was installed 99 times in the last week. Week over week that is +16%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.