I used Palemoon browser, which is based on Firefox engine, to play unity games, since it ddidn't stop unity support. It was evenmentioned as an secure alternative in the thread, when firefox shut down unity support.
Now since you blocked all browsers beside Firefox, Chrome, Safari and Edge, the unity games either won't work anymore or have to be played with the crappy WebGL engine.
If possible can we get palemoon to work again as an alternitive for unity games?
I didn't find the right solution from the internet.