FireFox v.111.0 issues

Just updated FF to v.111.0 and this thing is a resource hog at best. The process count is up to 28 after loading the home page and is sucking up just shy of a GB of memory. I opened the bookmarks tab and the screen just sits there with the spinning blue circle. No noticeable issues during the update. The mouse will move on the screen, but has no effect on anything.

jamis said:

Just updated FF to v.111.0 and this thing is a resource hog at best. The process count is up to 28 after loading the home page and is sucking up just shy of a GB of memory. I opened the bookmarks tab and the screen just sits there with the spinning blue circle. No noticeable issues during the update. The mouse will move on the screen, but has no effect on anything.

FF 111.0 hasn't caused those issues for me.
I think you have something else either causing or helping to cause the problem.

Have you tried running a virus scan?


With four tabs open I only see 13 processes, and 450MB memory usage.
With six tabs, I see 17 processes and 640MB of RAM usage.

And I'm on Win 11 (at the moment), which I believe uses "more" than Win 10.
I was just on Win 10 about 30 mins ago, and I didn't notice anything strange on FF 111.0

@jamis

You have some things to try...

1. Try FF in Safe Mode (Help > Troubleshoot Mode). If it works in Safe Mode, it's probably one of your extensions.
2. Use the Profile Manager to create a new profile for testing purposes...
Creating a new Firefox profile on Windows - MozillaZine Knowledge Base
3. If it works in the new profile, then your existing profile is probably corrupt.