Browser Window Unclickable & Crash on console open

Support Bug Reports
, ,
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Browser contents become unresponsive when the browser tab is moved to a new window. Attempting to open the console in that window crashes the entire IDE.

Steps to Reproduce

I open my project.
I spin up a web application via the cursor terminal.
I open a browser tab.
I right click and move the browser tab into a new window.
The browser contents (the webpage) becomes unclickable / unresponsive.
When I hit open console in the top right corner, the entire app crashes.

This ONLY happens when it is in a separate window, now when its an embedded tab.

Expected Behavior

It should not crash.

Operating System

MacOS

Version Information

Version: 2.4.28
VSCode Version: 1.105.1
Commit: f3f5cec40024283013878b50c4f9be4002e0b580
Date: 2026-02-03T00:56:18.293Z (3 days ago)
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 23.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

3

Hey, thanks for the report. This is a known issue. The same thing was already reported on Windows, and now it’s confirmed on macOS too.

Main thread: Bug: Browser tab unresponsive after moving to new window (v2.4.22)

Current workaround:

  • Don’t move the Browser tab into a separate window. Keep it in Cursor’s main window.
  • Or open localhost directly in your regular browser.

If there are any updates, we’ll post them in the main thread. I’m closing this one as a duplicate.

5

A post was merged into an existing topic: Bug: Browser tab unresponsive after moving to new window (v2.4.22)