Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Opus 4.5 is continuing to tell me it does not have the tool to use the browser tab even though for the last 2 weeks it has had no issue doing so. Steps to Reproduce Making sure in the prompt options you have “connected to bro…

Are you in Agent mode? Are you try with internal and external browsers?

I tried both in agent mode and edit mode and yeah I tried both the external browser and internal browser tab. It just continues to tell me it does not have that tool and as the image shows it listed the tools it says it has access to and no browser tool in the list. I used the exact dame model for 2…

Hey, thanks for the report. This looks like a known issue with Browser Tools in versions 2.3.18+. A few things to check: Settings → Tools & MCP → Browser Automation: make sure the status shows “Ready” and the browser is enabled there. Try fully restarting Cursor after enabling Browser Automat…

Having this same issue: # Browser tool usage _Exported on 1/13/2026 at 20:19:30 PST from Cursor (2.3.35)_ --- **User** Can you use the @Browser tool? --- **Cursor** I can use the Browser tool! I have access to two browser-related MCP servers: 1. **cursor-browser-extension** - Allows me to na…

Hey, could you turn off Privacy Mode and copy the request ID? The team is trying to look into this. Thanks.

Why is opus 4.5 telling me it does not have the ability to use the browser?

Support Bug Reports

Artemonim (Artemonim) January 12, 2026, 12:55am 3

Are you in Agent mode?
Are you try with internal and external browsers?

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Why is opus 4.5 telling me it does not have the ability to use the browser?

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