Difficult to install and completely glitched. I recommend Zen Browser, which is a fork of Firefox with Arc UI.

Very nice app, makes firefox behave very similiar.

Very limited

Cara valeu pelo addon, eu adoro esse layout e funções do arc mas não tem como deixar o firefox para trás, estou ansioso pros proximos updates

It is really nice, works like a charm, reminds me of my Vivaldi setup but i do like an occasional Chromium break, and this delivers. Its almost like a standalone browser but its honestly even better off being a mod on Firefox, Zen browser is nice and all but it feels clunkily connected to my main firefox account while arcfox runs literally ON Firefox itself. Really nice overall, i do recommend giving it a try!

Very nice extention, exactly what I was looking for a total Firefox UI overhaul. Would love it even more if it had autohide and a button to access settings and extentions if thats even possible.
Great work.