That's certainly a huge improvement IMO
🤣
Nobody can help because nobody knows what software you're running.
To check Firefox, you go to about:profiles and create/test a new one.
To fix your Operating System you go to your Operating System FORUM and put in a well formatted request for assistance.
Some Firefox people are also over at https://fedia.io/m/firefox so go try there.
FYI: I opened your link and it plays perfectly in Firefox.