Thank @ajgraves, that fixed it.
That setting may in fact be off by default, @TeddyCr, I think I remember poking around in there a few days ago. now.
However, when you get a bunch of tabs open with that setting off the tabs rather quickly go to favicon only, even though there is plenty of room still to display at least some of the page title as well. Would love to have more info in there even if it does get cramped.