Rated 5 out of 5 stars

Superb add on! I have been waiting for it for long time!
Best for people who want to make most of the display 'real estate' or who prefer minimal look.

If you are interested, this is how my Firefox looks after using it: http://i55.tinypic.com/eqxw0h.jpg

This review is for a previous version of the add-on (1.0.20110330).