On Firefox/Librewolf, currently generated thumbnails appear to be overwritten by Youtube's AI instantaneously. I can see them being loaded in, and then also being swapped back for the originals on every refresh, every extension disable/enable cycle, with all variants of thumbnails except black boxes.
On Firefox/Librewolf, currently generated thumbnails appear to be overwritten by Youtube's AI instantaneously. I can see them being loaded in, and then also being swapped back for the originals on every refresh, every extension disable/enable cycle, with all variants of thumbnails except black boxes.