Earlier quoted context omitted.
Seconded. I prefer it to the old design. But we seem to be the minority.
It's just the HN effect; complain about the most minute details. Firefox simply wanted it to be more obvious that the address bar is in focus the moment you open a new tab.
> Firefox simply wanted it to be more obvious that the address bar is in focus the moment you open a new tab.
Is that it? Because I'm still trying to figure this out! I'm just really surprised that this was a problem for a substantial number of users—the address bar already had a very prominent focus state with its thick blue outline.