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This thing is blazing fast. And when I say blazing fast, I mean freaking blazing fast. I've never seen a browser this fast my entire life. Lol
It's chrome but 10x faster. Give it a shot.
Well, you have two options. The same developer of thorium does have a Firefox one and it's called mercury. Blazing fast, too. Or you can install adblock detection bypass extension on thorium. It is an extension that's made to work with chrome alongside ublock origin to bypass YouTube adblock detection. In fact, I literally just ran into that issue today and the other extension fixed it.