My Firefox slows down when watching a Facebook gaming livestream for about an hour
I'm using a fresh install of the latest FF version with bookmarks and stuff imported from another browser. The issue I'm experiencing is that when watching livestream at Facebook, after an hour or so the browser slows down and tabs become laggy. CPU & GPU usage for Firefox at that time is around 45% each.
If you have some information how to solve this, I'd appreciate it.
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I found a bug for this filed on bugzilla but it was referencing twitch streaming, and it seemed to be coming from the way they implement their chat (it was really bad on heavy chat streams and disabling chat recovered the resources). Are you talking about any given facebook stream though? Just wanna make sure I understand.
Maybe it's something similar in my case, there are more than 400 viewers and a lot of chat activity. I've been watching only one streamer (https://fb.gg/todorov.kitodar) but it happened several days in a row. When it starts to slow down I refresh the stream's tab and it takes around 5-10 seconds to refresh, after which things speed up to normal behavior for a while.