Maybe take a look at Vivaldi, it's a continuation of the old Opera, with basically the same development team. It's the most user-friendly and configurable option at this moment, they're very responsive to feedback, and are the only organization that doesn't have some horrible privacy violations in the past (maybe excluding Apple, I don't know and don't care, 90% of users on this planet can't run Safari).

Also they are in Norway if you care about that sort of thing.

It's not FOSS, though, at least for now.