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:
- 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. - 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:
- CURSOR UNUSABLE - " Agent execution provider did not respond in time. The extension host is not running or is unresponsive. "
- After last update, stuck at “Waiting for extension host”. Cursor Version 3.0 >
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.