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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionBrowser UseMake websites accessible for AI agents. Automate tasks online with ease.FSB MCP ServerControl the FSB browser extension from any MCP client for DOM-first AI browser automation.
FMRS33 / 100 · D66 / 100 · C
Reliability5 / 2010 / 20
Security and permissions5 / 2014 / 20
Maintenance11 / 2015 / 20
Documentation6 / 2015 / 20
Setup experience6 / 2012 / 20
Best for
  • Users who want AI agents to perform one-off browser tasks (e.g., via Claude Code, Cursor, etc.)
  • Developers building software that automates the web using the Python library for repeatable, scalable tasks
  • Developers who want AI clients to directly control the browser
  • Scenarios requiring DOM-level understanding and low-latency automation (50-200 ms)
  • Multi-client support (Claude Code, Cursor, VS Code, etc.)
  • Internal tools or automation scripts needing browser interaction
Not for
  • Scenarios not requiring browser automation or simple API calls
  • Simple tasks where cost sensitivity is high and background browser services are unnecessary
  • Headless browser or server-side monitoring
  • Bypassing website restrictions or unsupervised automation
  • Automation on sensitive pages without human supervision
  • Complex scenarios that require visual understanding (e.g., screenshots)
Required permissions
  • Access to local Chrome browser process
  • Read and manipulate web page content (forms, buttons, data)
  • Potential read access to local files (e.g., configuration)
  • Network access to load web pages and call LLM APIs
  • Requires installing the Chrome extension, which requests permissions for active tab, debugger, storage, etc.
  • MCP server needs to connect to the extension via WebSocket (default ws://localhost:7225)
  • Optional Streamable HTTP mode requires allowing connections to http://127.0.0.1:7226/mcp
  • Uploading files requires providing absolute local paths
Risks and side effects
  • May perform unintended web actions (e.g., submitting forms, purchasing items)
  • Requires LLM API keys, which may incur costs
  • Automated browsing can be detected by websites and lead to IP bans
  • Handling sensitive data (like login credentials) requires privacy consideration
  • Browser automation can be unpredictable on complex or sensitive sites; supervision is required
  • Credentials and payment info are stored in a vault but require user unlock flows
  • API keys are encrypted in Chrome storage, but clients may send page context to model providers
  • MCP server is a local process, posing local security risks
  • Capability catalog allows most non-denied origins but is gated by multiple checks
Supported clientsClaude Desktop, Claude Code, Cursor, VS Code, Windsurf, Codex
Tools030