Hi epicwinter and welcome to our community. TBH I doubt
you'll find a HAT that seemlessly works with all browsers. Sure RH
works with Firefox and IE (can't speak for Safari as I've not used
it) but just like any third party product how it reacts depends on
what you're trying to do. That said, it's pretty rare that there
are problems posted on here that can't be solved and that are
problems with RH itself. Most of the time they're down to browser
settings, local set-up, etc. You're best bet is to look back
through these forums for issues and see what people have said. Best
of luck.