Initializing extensions... breaks extensions functionality and slows down Cursor IDE

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When I have some extensions enabled like the “Git Blame” extension, the IDE gets stuck in a state where it does not render any menu item or functionality that is related to extensions, the IDE is considerably slower and there is a message on the bottom bar saying “Initializing extensions…”

Steps to Reproduce

Open a project in the Editor mode and have an extension like Git Blame active (not sure if that extension is the culprit). FYI I am on CachyOS with kernel v7.0.1

Operating System

Linux

Version Information

IDE: v3.2.11

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, this is a known issue with the extension host. The symptom is getting stuck on Initializing extensions… plus general IDE slowdowns. We’re tracking it, mostly on 3.x. Linux is one of the affected platforms. I can’t share an ETA for a fix yet.

In the meantime, here are a couple workarounds that helped other users with the same issue:

  1. Launch Cursor with --disable-extensions, then enable extensions one by one. This can help confirm if a specific extension like Git Blame is triggering the extension host freeze.
  2. If that doesn’t help, try deleting the workspace storage for the affected project at ~/.config/Cursor/User/workspaceStorage/, then restart the IDE.

Related threads you can follow for updates:

If the workarounds don’t help, please share the full Help > About output block with versions, and the extension host logs from Output panel > Extension Host. I’ll attach them to the report. Once there’s an update on the fix, I’ll post it in the thread.