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Firefox 84 on Windows 10 stutters while playing 1080p 60fps Youtube videos. Edge works fine.

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  • Last reply by moreira.jf

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This is an i7 4500U, Intel HD 4400 (Intel Graphics Family). Drops approximately 5% of the frames resulting in video stutter. Running on a (tested) 200mbps connection. Like I said in the title, Edge plays fine. I remember a few versions ago (can't pinpoint now), Firefox used to play theses videos without any issues. Examples: https://www.youtube.com/watch?v=79ImZE0K7xc And https://www.youtube.com/watch?v=IeZeINA1ts0

I spent the last morning trying every solution I found on the Internet, Reddit and Mozilla forums. Disabling stuff in the about:config, webgl stuff, doublebuffer, etc, etc. Tried downgrading to V77, disabling enabling 3D acc., etc.

Thanks.

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