Φόρουμ υποστήριξης - Firefox

So I have never had a problem with YouTube up until yesterday, anytime I try to watch a video and click play or anywhere on the video it just has a circle that spins in the middle around a youtube button, or sometimes just a black screen.

I have tried clearing Cookies & Cache, tried in safe mode, tried with a new profile, disabled hardware acceleration, I even uninstalled and re-installed Firefox.

Still for some reason I am unable to watch videos and only on Firefox, it works fine in Chrome and Edge browsers.

I am at a loss on how to fix this, and I really don't want to have to use two browsers for watching videos and navigating the internet.

Any Ideas?

Also my Internet is not the problem, I have Gigabit Fiber.