In the last 24 hours or so, embedded youtube videos on Reddit are mostly not playing back. I get the "playback error" but the website itself works fine.
I've found other posts on the same error but not a resolution that works for me. I know Firefox updated a few days ago but it didn't start then, and I haven't changed or updated anything else. (Everything is up to date)
I get a similar issue with videos in Linkedin.