Rated 5 out of 5 stars

This is a very cool add-on -- it's easier/faster to navigate tabs when they don't all have the same color.

Unlike the other tab-coloring extensions, FabTabs is also seemingly forcing Firefox's tabs to properly match Linux desktop theme settings, making it both more attractive and easier to use.

This review is for a previous version of the add-on (1.3.4.1).