I agree with you. There was a big outcry when they changed it, granted this was quite some time ago and the young ones here may not remember, but it’s still a break from the way everything else works.
But as usual, broken stuff becomes the new normal after a while.
A single line text field in any interface doesn’t behave the same way as the single line text field in the address bar. It certainly does break conventions.
4 reasons to try Mozilla’s new Firefox Linux package for Ubuntu and Debian derivatives | The Mozilla Blog (blog.mozilla.org)