[badsectoracula]

Tabs being buttons doesn't really bother me and if anything this is such a common alternative to tab appearance that even Windows 95's tab control has a mode to make tabs look like buttons (AFAIK it was used in the original task bar). It was also used for, e.g. switching channels/windows on mIRC since the 90s too.

However personally i do not like how these particular "tab buttons" look like and if nothing else (they remind me of those long pills that often feel hard to swallow :-P), i am used to them looking like tabs and see no reason for that change (fortunately Firefox allows you to customize its look and i have a userChrome.css that makes it look more to my liking).