embedded videos upside down. scrolling locks weirdly

Since today all embedded videos online are turned upside down. Time, controls and subtitles are still fine though. And also have an issue scrolling websites. Scrolling works just fine as long as i start scrolling when nothing is moving. If the screen is already scrolling slowly and i start to scroll more the screen freezes until a second or do after i let go.

Tried restarting phone and clearing cache Nothing changed as far as I'm aware. It's only firefox. Everything else is fine