User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:76.0) Gecko/20100101 Firefox/76.0
Steps to reproduce:
Whenever I enter, for example; PCgamer.com my CPU usage will go over 30% or even up towards 100%. I have a i7 9700K. (also 2080ti and 32 GB RAM) Memory usage is also over 4GB just for firefox alone.
This also happens when viewing a youtube video with chat.
It also happens at alot of other random pages but I cant remember them all.
This happened after I updated to 76.
As stated above high CPU usage to the point of not being able to use firefox because of fan noise.
I tried refreshing firefox. I've disabled and uninstalled all my add-ons and themes and I've tried reinstalling Firefox. Even tried to remove all my settings and favourites. (Clean install) I have not changed anything else with my computer since updating firefox, the problem started with the update.
I have tried everything I can think of so I will stop using Firefox until this is fixed since my GPU will hit 70 degrees C with nothing else open exept Firefox ...
CPU usage should not be this high, and it was'nt until i updated a couple of days ago.
Attached picture of CPU usage just by having PCgamer.com open.