Mozilla has fixed a playback issue on YouTube that affected some Firefox users for several months.

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.

    • BlackmistEnglish
      9·
      5 months ago

      It is.

      “This problem is triggered by bad muxed VP9 bytestream served by Youtube, so it’s not a regression on our side, this issue can also be reproduced on old versions Firefox”.