Firefox DevTools MCP
Firefox DevTools MCP is a MCP server for browser and computer automation, published by freema.
Automate Firefox browser interactions for AI agents using WebDriver BiDi protocol, with tools for page navigation, element interaction, network capture, and screenshots.
Is it any good?
Effectiveness · benchmark pending
We haven't benchmarked Firefox DevTools MCP yet, so its score is provisional — computed from safety, maintenance, and documentation only, with popularity given no weight. When we benchmark it, we measure whether it produces materially better output than a frontier model alone, and that result leads the score. How we measure.
About Firefox DevTools MCP
Description · AI-summarised from the freema README
Firefox DevTools MCP is a Model Context Protocol server maintained by Mozilla that enables AI agents like Claude to control and automate Firefox browsers via WebDriver BiDi. It provides tools for page management, element interaction via snapshot UIDs, network request capture, console access, and JavaScript evaluation. Supports headless and headed modes, profile customization, and can connect to existing Firefox instances. Includes comprehensive security guidance and is built for use with Claude Code, Cursor, Cline, and other MCP clients.
Where it fits
Browse related skills
Install Firefox DevTools MCP
Install
Install via MCP server
{
"mcpServers": {
"freema-firefox-devtools-mcp": {
"command": "npx",
"args": ["-y", "@freema/freema-firefox-devtools-mcp"]
}
}
}Install with your AI
Zero install · paste into ChatGPT, Claude, Cursor…
Install the "Firefox DevTools MCP" skill into my project by following all instructions at https://skillsdirectory.co/s/freema-firefox-devtools-mcp
Your assistant reads /s/freema-firefox-devtools-mcp and follows it — fetching the files from the source, placing them, and confirming before it runs anything. No account needed. How this works.
Frequently asked
FAQ
What does Firefox DevTools MCP do?
Automate Firefox browser interactions for AI agents using WebDriver BiDi protocol, with tools for page navigation, element interaction, network capture, and screenshots.
How do I install Firefox DevTools MCP?
Firefox DevTools MCP is a MCP server. Primary install path: { "mcpServers": { "freema-firefox-devtools-mcp": { "command": "npx", "args": ["-y", "@freema/freema-firefox-devtools-mcp"] } } }
What is the Skill Score for Firefox DevTools MCP?
Firefox DevTools MCP has a Skill Score of 6.0/10 (Solid). It is currently a provisional score — Firefox DevTools MCP hasn't been benchmarked yet, so it weights safety 75/100 (40%), maintenance 45/100 (30%), and documentation 70/100 (30%). Popularity carries zero weight until effectiveness is measured. See methodology.
Is Firefox DevTools MCP free?
Firefox DevTools MCP is published under the NOASSERTION license. See the vendor's source repository for any usage limits or paid tiers.
Related skills in Browser and computer automation
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Embed this score
For maintainers · always-current, links back
Put it in your README — it updates as the score changes.[](https://skillsdirectory.co/skills/freema-firefox-devtools-mcp)
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