>>106197199
I had the same error a few days ago.
I have 3 adblockers installed: adblockplus, Umatrix and Ublock Origin on Librewolf. Videos played just fine on Youtube itself but embed links used for post or videos posted like gematsu had all Error Code 0. Turned out ONLY Umatrix was the problem, by fully disable it everything played just fine. I waited a few hours and update my filters and now all 3 blockers work normally.
Someone reported it was caused by some personal script, don't know what to say..
