Cursor 2 is freezing all the time

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When I just update to the latest cursor or if I download it from the store I have the same problem. When any of the agents modifies even a single file the cursor gets frozen. And the only way for me is to wait for it to ask me to restart. I’ve tried updating, installing, and rerunning it many times. The only solution I have for now is to downgrade to the v1.x.

Steps to Reproduce

I just installed it, opened, and started coding. and it’s consistent and I’ve even tried on different projects and with different models.

Expected Behavior

The cursor editor should work fine independently of the action we take. Also at least crucial functionality should work. I think there should be a way for us to rerun the I don’t know extension host or something similar to get to the fresh point where everything works.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.43
Commit: 8e4da76ad196925accaa169efcae28c45454cce0
Date: 2025-10-30T18:49:27.589Z
Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Cursor/2.0.43 Chrome/132.0.6834.210 Electron/34.5.8 Safari/537.36

For AI issues: which model did you use?

I’ve tried Sonet 4.5, GPT-5 Codex, and Composer, and maybe others as well

Does this stop you from using Cursor

Yes - Cursor is unusable

Same here, it is using to much ram more than 6gb for me, making my m3 Mac OS 26 unusable. Constantly freezing and the whole machine starts freezing.

Hey, thanks for the report. We’re seeing similar Agent tab freezes on macOS and Windows in recent versions. A few things to try:

Check your settings.json:

  • Open Command Palette (Cmd+Shift+P) → Preferences: Open User Settings (JSON)
  • Look for "workbench.editor.showTabs": "single"
  • If it’s there, change it to “multiple" or remove it entirely

Test in Safe Mode:

  • Run cursor --disable-extensions from terminal to launch without extensions

Also helpful:

  • Clear chat history if you have long conversations stored
  • Check Task Manager when the freeze happens: what’s the memory usage?
  • Does this happen across all your projects or just specific ones?

Let me know if any of these help.

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It looks like removing “workbench.editor.showTabs” works for me :ok_hand:
Thanks !

I never showTabs, so it’s none for me all the time, but now enabling multiple helped. :thinking:

But I think it needs to be fixed.

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