everything vs firefox-devtools-mcp
Side-by-side comparison to help you pick between these two MCP servers.
everything by modelcontextprotocol | firefox-devtools-mcp by mozilla | |
|---|---|---|
| Stars | ★ 85,748 | ★ 162 |
| 30d uses | — | — |
| Score | 77 | 50 |
| Official | ✓ | — |
| Categories | Developer ToolsAI / LLM ToolsOther | Browser AutomationDeveloper ToolsWeb Scraping |
| Language | TypeScript | TypeScript |
| Last commit | this month | this month |
everything · Summary
Official MCP test server exercising all protocol features for client builders.
firefox-devtools-mcp · Summary
Mozilla's MCP server for automating Firefox DevTools via WebDriver BiDi, enabling AI assistants to control and inspect browser functionality.
everything · Use cases
- Testing MCP client implementations against all protocol features
- Learning MCP protocol capabilities through a reference server
- Validating client compatibility with different transport methods
firefox-devtools-mcp · Use cases
- Automated web testing with AI assistants that can navigate pages and interact with elements
- Web scraping and data extraction by AI systems that can control browser behavior
- Visual regression testing through automated screenshot comparison
everything · Install
NPX (recommended)
{
"mcpServers": {
"everything": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-everything"]
}
}
}On Windows, use cmd /c:
{
"mcpServers": {
"everything": {
"command": "cmd",
"args": ["/c", "npx", "-y", "@modelcontextprotocol/server-everything"]
}
}
}Docker
{
"mcpServers": {
"everything": {
"command": "docker",
"args": ["run", "-i", "--rm", "mcp/everything"]
}
}
}Global install
npm install -g @modelcontextprotocol/server-everything@latest
npx @modelcontextprotocol/server-everythingfirefox-devtools-mcp · Install
Installation with Claude Code
claude mcp add firefox-devtools npx firefox-devtools-mcp@latestOr add to Claude Code settings:
{
"mcpServers": {
"firefox-devtools": {
"command": "npx",
"args": ["-y", "firefox-devtools-mcp@latest", "--headless", "--viewport", "1280x720"],
"env": {
"START_URL": "about:home"
}
}
}
}Prerequisites
- Node.js ≥ 20.19.0
- Firefox 100+ installed