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Firefox is unbelievably slow when I'm watching youtube videos (lemmy.ml)

submitted 2 years ago* (last edited 2 years ago) by Yoru@lemmy.ml to c/firefox@lemmy.ml

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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)

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[–] warren_aver_france@lemmy.world 9 points 2 years ago (1 children)

I found youtube videos unbearable as well and I found the culprit to be ambient mode in the video settings. I ended up adding a rule in ublock origin to delete the ambient mode stuff regardless of the setting just to make sure ambient mode is disabled in private windows etc.

[–] mitchell@lemmy.ca 3 points 2 years ago (1 children)

What was the rule you added? I turn ambient mode and in-line playback off but Google is constantly resetting those switches.

[–] warren_aver_france@lemmy.world 3 points 2 years ago (1 children)

I don't have access to my desktop computer at the moment but i believe it was this rule: https://old.reddit.com/r/youtube/comments/ykana1/how_do_i_disable_youtubes_ambient_mode_permanently/j9khxuh/

[–] mitchell@lemmy.ca 2 points 2 years ago

Thanks, I’ll give it a shot!