I always loved an OPTION in good old Internet Explorer: to set location of my tabs next to the address bar in the right side of the screen leaving the address bar on the left side. It's really cool UI solution and was a distinguishing feature. I'm not asking to set it by default, we only need it as an option.
Come one, give this browser more love, let us personalize it (in a good and effective way, not just setting-up background images).
It's really a good solution for wide screens and especially for 21:9 screens!