I-Firefox ye-Android Isithangami Sokwesekwa

I just started using Firefox again this week and I'd like to know if there's any option or add-on for Firefox mobile to have better video playback control like Samsung Internet with (video assistant) or an option to open with an external player, I've looked but can't find any way to have better playback controls. I love Firefox and want to keep using, but this is a huge feature for me.

I am sure someone has asked the question before but couldn't find the answer. Why dark mode has to be different than other dark modes on other apps. Colours really does not match nicely with my phone. I used Samsung Fold and its really unpleasant.