Browser tool stuck

[MarceloDiani]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

If for some reason when agent tries to access a browser url using @browser and the browser fails to load for some reason (it’s not the page who fails to load, its the browser itself) the tool gets stuck forever waiting the browser, even if you click to restart it, the tool waits forever.

Steps to Reproduce

Break the browser in some way (so the reload button shows up)
Use a tool to open a url in internal @browser

Expected Behavior

The tool should finish or try again or try to refresh the browser or after I refresh the browser I could ask the tool to check it

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.43 (user setup)
VSCode Version: 1.105.1
Commit: 32cfbe848b35d9eb320980195985450f244b3030
Date: 2025-12-19T06:06:44.644Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.26100

For AI issues: which model did you use?

Gpt 5.2 extra high

Does this stop you from using Cursor

No - Cursor works, but with this issue

[Colin]

Hey @MarceloDiani

@MarceloDiani

Steps to Reproduce

Break the browser in some way (so the reload button shows up)

A bit easier said than done! Do you have an easy way to reproduce this? A specific URL, or scenario that tends to make it crash? Fortunately, the browser has been pretty resilient re: anything I’ve thrown at it.

[MarceloDiani]

Unfortunaly I don’t, it’s not really a big problem, must be a very edge case, but just to let you know. Maybe you can force the “reload“ button to appear, it’s a button like “your browser stopped reload your browser“. If I notice it again I let you know.

[MarceloDiani]

In fact I could reproduce, try to use an invalid url like `localhost:3001` (for a non existing service)

[Colin]

Hm. Am I triggering this any differently than you do?

In my case, it recognizes the failure to load and moves on (2.2.43 here as well)