Rated 4 out of 5 stars

I've been using this for some time, and it works quite well, however the add-on is putting the group name in the Firefox Titlebar. If this could be changed to not be shown at all or be an option to turn this on or off it would be considerably better.

Additionally when the option "Hide GroupBar when mouse exit toolbox" is enabled (Firefox 8), the bar is hidden and does not show no matter where the mouse is.

This review is for a previous version of the add-on (2011.  This user has a previous review of this add-on.