People argue about whatever minutia they think makes a web browser the best, but nobody every talks about how none of the major browsers out there have a functional download manager. Honestly, just adding a download resume function would be a game-changer.
@bogdan_vasut Forget left and right tabs. The only thing Microsoft Edge got right was highly-functional vertical tabs. They must own a patent on it or something, because it's a killer feature, which is shamefully attached to an otherwise sub-par browser. Though I would argue it has better tab behavior overall compared to other Chromium browsers.
@Alex I'd also like a sane tab mode, always open immediately right, always switch immediately left on close. It's the simplest to implement but somehow no one (except uzbl-tabbed, in my knowledge) do that.