I think you are underestimating the impact of the subtle nature of the differences. For me, it really kind of annoys me that FF seems to have a looser UI than Chrome. It&#x27;s those couple of pixels of padding between address bar and tabs, it&#x27;s the wider&#x2F;longer tab due to padding, etc..<p>And now that I think about it, it&#x27;s even things like the tab behavior where Chrome condenses tabs and FF just pushes them out of view an adds the disgusting scroll UI. Maybe that&#x27;s a personal preference thing, but I would very much prefer having a dense overview rather than having what is essentially a nested scrolling.