I've experienced this before the crashes, high ram usage or just part of the browser crashed having to fully close it for the browser to start working again
it's extremely strange, this is what was happening to me which it led to me disabling the XMP on one of my computers to make sure it wasn't my memory ram but nope. it's just firefox. extremely strange really
Same I watch a lot of youtube and twitch and it's almost impossible now, every time a tab crashes it also crashes discord, I've tried unloading tabs to keep it simple but no luck. I have this same issue in another machine, both runnning windows 10 up...