Some Firefox users noticed playback issues on YouTube for several months. These affected high resolution videos only, from 1080p and up. To make matters worse, no clear pattern could be identified.
Some videos played fine, others would stop abruptly when they ran out of buffer.
I stopped watching on their website due to this. It’s faster and I get better scalers on ytdl(p)+mpv
Are Piped or vanced affected as well?
I exclusively use Piped, and never have any problems. No ads, no bullshit, sponsorblock and DeArrow.