Firefox MCP Server

Name: Firefox MCP Server
Author: JediLuke

playwright · by JediLuke

A fully vibe-coded, experimental, MCP server to control firefox

30 85.0M/wk 29 tools GitHub npm

No known CVEs

MIT license

Stale

Last commit 243d ago

Works with most clients

Transport: stdio, sse, http

29 tools · ~2.3k tok

Grade C · 1.2% of 200K ctx

MCPpedia last refreshed this data 22h ago

Edit this pageView history

Firefox MCP Server is an MCP server that a fully vibe-coded, experimental, MCP server to control firefox. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 75/100 on MCPpedia's security, maintenance and efficiency rubric.

Browser

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "firefox": {
      "env": {},
      "args": [
        "firefox-mcp-server"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/firefox-mcp-server)](https://mcppedia.org/s/firefox-mcp-server)

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What Firefox Mcp Server does

Advanced Firefox browser automation with comprehensive debugging capabilities

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'playwright' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

75/100across 5 weighted dimensions

How we score →

0255075100

−25

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

1 fixed

CVE-2025-59288high · fixed

Playwright downloads and installs browsers without verifying the authenticity of the SSL certificate

### Summary Use of `curl` with the `-k` (or `--insecure`) flag in installer scripts allows attackers to deliver arbitrary executables via Man-in-the-Middle (MitM) attacks. This can lead to full system compromise, as the downloaded files are installed as privileged applications. ### Details The following scripts in the `microsoft/playwright` repository at commit [`bee11cbc28f24bd18e726163d0b9b1571b4f26a8`](https://github.com/microsoft/playwright/commit/bee11cbc28f24bd18e726163d0b9b1571b4f26a8) u

Affected: >= 0Fixed in 1.55.1source →

Inventory

Tools (29)

Click any tool to inspect its schema.

~2.3k tokens total

Community

Reviews

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Frequently Asked Questions

Is Firefox Mcp Server safe to use?: Firefox Mcp Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install Firefox Mcp Server?: Firefox Mcp Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Firefox Mcp Server do?: Firefox Mcp Server provides 29 tools: browser_launch, browser_close, session_create, session_list, session_close and 24 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Firefox Mcp Server?: Firefox Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Firefox Mcp Server actively maintained?: Firefox Mcp Server is less actively maintained — last commit was 243 days ago. It has 30 GitHub stars.

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Community

Discussion

Start a conversation

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Frequently Asked Questions

Is Firefox Mcp Server safe to use?

Firefox Mcp Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install Firefox Mcp Server?

Firefox Mcp Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Firefox Mcp Server do?

Firefox Mcp Server provides 29 tools: browser_launch, browser_close, session_create, session_list, session_close and 24 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Firefox Mcp Server?

Firefox Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Firefox Mcp Server actively maintained?

Firefox Mcp Server is less actively maintained — last commit was 243 days ago. It has 30 GitHub stars.