Unable to use Browser Automation features

Support Bug Reports
2

Hey, thanks for the report. The “No server info found” error means the MCP browser-automation server failed to initialize properly. This is a known issue in 2.2.20 with Browser Tab mode.

Similar reports here: Cursor 2.1 Agent can't access in-IDE browser

Try these for now:

  • Fully restart Cursor (completely end the process, not just close windows) - this often fixes MCP initialization
  • Clear npx cache: open terminal and run rm -rf ~/.npm/_npx, then restart Cursor
  • Switch to Google Chrome mode instead of Browser Tab in Settings > Agent > Browser mode - this can help until Tab mode is fixed
  • Check Settings > Tools & MCP - disable Browser Automation, then enable it again
  • If using VPN/proxy - disable it and try again

If the error persists, attach the Request ID from the browser-automation attempt. This will help engineers track the issue.

Browser not working