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Firefox freezing - High CPU usage spikes

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I don't remember exactly the date, but I think it started after a update(firefox/windows). The oldest pic I have is from 23/11/20. Firefox was running without no problems, then this started.


The problem is High cpu usage from time to time. Making firefox slower and also freezing tabs. It's so annoying. Made me use Edge that runs incredibly smooth, I was impressed( I can even watch media in 1080p with no problem).

Then I noticed through the task manager that the 'Host service Windows font cache service' is always present, as you can see in the gallery. I didn't find anything related to that.

Tried starting in safe mode, refresh, uninstalled and installed today(24/02) and nothing worked. This is driving me crazy because I love using the browser.

My PC Setup is: Windows 10 Home i3-4130 8GB ram no video card

And I use the free avira antivirus.

Attached screenshots

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