Agent can't use Browser MCP

Support Bug Reports
,
3

Hey, thanks for the report. This is a recurring issue with the built-in browser tools. Try this:

  1. Update Cursor. You’re on 2.4.22 (Jan 26), which is pretty old now. There have been several fixes for Browser MCP since then. The team fixed a similar bug around 2.3.18+. Go to Help > Check for Updates.

  2. Toggle Browser Automation. Go to Settings > Tools & MCP > Browser Automation, turn it off, wait about 10 seconds, then turn it back on and set it to “Browser Tab”. After that, fully restart Cursor, not just Reload Window.

  3. After restarting, open a new Agent chat and try again.

Note: cursor-ide-browser is the built-in MCP server. It won’t show up as a separate entry in the MCP config list. It’s fully controlled by the Browser Automation toggle in Settings > Tools & MCP.

If it still doesn’t work after updating and toggling, please send:

  • The Request ID from the failed chat (three dots in the top right > Copy Request ID)
  • Any errors from Help > Toggle Developer Tools > Console when the agent tries to use the browser

Related solved thread for reference: Tab Browser not accessible to AI again Tab Browser not accessible to AI again