Video stutter/hangs, Edge does not have this problem.

[Skybuck]

Many 1k/2k/4k videos stutter/hang in FireFox, it's very annoying.

It usually happens after 2 minutes into the video. Edge does not have this problem, which seems to prove it's not an ISP issue.

I suspect it is some kind of video decoder issue and FireFox freezes/hangs/stutters.

[Skybuck]

One possible cause of it is, I like "zapping" through videos.

Perhaps the zapping is triggering this defect in FireFox...

[Agentvirtuel]

Hello

https://bugzilla.mozilla.org/show_bug.cgi?id=1878510#c61 ?

Configuration Editor for Firefox https://support.mozilla.org/en-US/kb/about-config-editor-firefox ?
Search network.http.http3.enable

Other, try, embed yourvideo