When playing videos on a Firefox based browser on desktop, the video won't play at all. It works as expected on chromium browsers.
On mobile, the video plays, but if you interact with the seekbar, the video stops working, and you can't play it again unless refreshing the page.
Desktop example:
I expected the video to play on Firefox just like it does on Chromium based browsers, and be able to use the seekbar without breaking anything.