Short Firefox freezes when it gets focus

[ishaan2479]

Launch firefox in safe mode (firefox -safe-mode ) to temporarily disable all the extensions and see if the problem persists.

Also if this happenning only after update then maybe this could help:

Problem with Firefox- Gecko Main pigging CPU after upgrade to 96

If you’re having trouble with #firefox, try disabling HTTP3 in about:config with the ‘network.http.http3.enabled’ key. After setting this and restarting Firefox everything worked again.