This is game changer and not the reason I stay with Firefox. However, when question of Brave comes up, with all that they do, although they are building off chromium code so maybe it is a function that cannot be implemented ( I think it can be but not sure if maybe some limitations that would make it not as effective as what Mozilla can do with having their own engine for their browser ). I am with Firefox regardless. 65% Firefox, 25% Brave, and 10% Chrome, last one to sandbox off google and microsoft from touching other browsers but all it gets are those two companies plus yahoo.