I'm using Firefox Beta, it's always my default with Ublock Origin. I used to have Firefox Nightly for the pull down to refresh option but it was buggy when scrolling up.
I also tried Vivaldi and Samsung Browser with bottom tab bar, I feel way more productive there, wish firefox had this option too.
I also use Firefox but it became really.. Weird lately? For example, when I click on a link in another app, which opens Firefox; the app just freezes? I can't give any input to the website but I can still switch tabs. It's super weird...
Unblock Origin in the browser is a godsend and I can't imagine going back. It even makes YouTube usable again, if you can live without the native app feel. I mean, I could pay for YouTube premium but then again! It is mostly waste of time anyway :)
I only use Chrome when Firefox has trouble rendering some page.