(firefox, fedora) Random youtube videos refuse to play and give an error instead

Recently changed to linux (I'm using Fedora Workplace) whenever i play youtube videos, some work, but some don't, and give this error instead: The same videos will just never play, I can't seem to find patterns for which and why these videos don't work, and a way around it, already tried disabling ublock and didn't change, please help! (using firefox btw)