Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
Browser automation tools aren’t accessible, even though the Tools panel shows “Browser Automation: Ready (Chrome detected)”.
Environment:
Operating System: macOS (after restart)
Using Agent mode in the standard Cursor editor window
Browser Automation status: “Ready (Chrome detected)”
Chrome is installed and running
Server running locally on port 5000
Problem:
When attempting to use browser automation tools, they are not found. For example:
mcp_cursor-browser-extension_browser_navigate → Tool not found
mcp_cursor-browser-extension_browser_snapshot → Tool not found
All other browser tools → Not found
Error message:
Error calling tool: Tool mcp_cursor-browser-extension_browser_navigate not found.
Available tools: [“codebase_search”,“run_terminal_cmd”,“grep”,“delete_file”,…]
What I’ve tried:
Restarting Cursor
Restarting Mac
Verifying Chrome is running
Using call_mcp_tool with different server identifiers (cursor-browser-extension, browser-automation, browser, etc.)
Checking settings — Browser Automation shows “Ready”
Using Agent mode in the standard editor (not a separate Agent Window)
Expected behavior:
Browser automation tools should be available when the status shows “Ready (Chrome detected)”, allowing me to:
Navigate to URLs
Take page snapshots
Click elements
Type in inputs
Run JavaScript
Check console messages
View network requests
Impact:
Cannot perform automated browser testing. I need to verify UI functionality and performance improvements, but cannot interact with the browser programmatically.
is there any workaround?
Steps to Reproduce
Open Cursor IDE
Ensure Chrome is installed and running
Open Settings → Tools & MCP
Verify Browser Automation shows “Ready (Chrome detected)”
Switch to Agent mode (not a separate Agent Window, but Agent mode in the main editor)
Attempt to use browser automation tools by calling:
mcp_cursor-browser-extension_browser_navigate({url: “http://localhost:5000”})
Or any other browser tool like browser_snapshot, browser_click, etc.
Observe the error: “Tool mcp_cursor-browser-extension_browser_navigate not found”
Expected Behavior
Browser automation tools should be available and functional, allowing navigation, snapshots, clicks, typing, etc.
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 2.0.77
VSCode Version: 1.99.3
Commit: ba90f2f88e4911312761abab9492c42442117cf0
Date: 2025-11-13T23:10:43.113Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 25.0.0
For AI issues: which model did you use?
(This is not an AI issue, issue exists for multiple agents)
Does this stop you from using Cursor
No - Cursor works, but with this issue