I have about 25 extensions (almost all needed) and firefox lags like crazy, it’s like I’m watching the videos at 10 fps. I download chrome to test it out and sure enough it runs as smooth as butter. Any help?
EDIT: It somehow fixed itself after I started using LibreWolf (with the same addons)
Can you also watch twitch at 1080p without lag? Maybe you don’t watch it, but I always had problems with that. Chrome works perfectly on twitch but not Firefox
Firefox plays 1080p twitch streams just fine for me on several machines.
Hmmm, maybe my PC just sucks :'/
It could be many things.
Do you have a lot of extensions enabled?
Is your Firefox updated?
Is xmp or docp enabled so your ram is running at the right speeds?
Is hardware acceleration enabled/disabled in firefox?
Have you tried a fresh firefox profile/install? you could try downloading a beta/dev version and testing with that.