I hope they figure out the mechanics of tab management instead of just giving their UI a visual overhaul.

For example, if you have inactive tabs in Chrome or a fork, and you close your first active tab, you get sent to the next active tab. Even if you close all your active tabs, the inactive ones just wait patiently for you to notice them.

In Firefox, if you close your first active tab, it pulls an inactive tab into the active tab list and focuses you on that.

It's kind of painful to see Google implementing features Firefox had first, but better than Firefox