Execellent! Rated 5 out of 5 stars
A few problems, and some add-on's don't work well with it, however, combining this add-on with "autoHideStatusbar" and "Tabs on top" are a great mix. Well worth taking the time to install.
Additionally "BarTab" and "Autohide Tabbar" add to the 'perfection', however, using the "Tab Mix Plus" option to place an X on each tab so that you can close the tab, causes problems when a new tab is opened from a link and "Autohide Tabbar" has the tab bar hidden; problem being, the X isn't shown.
Sure wish the author offered more then Orange for the button though......