Rated 5 out of 5 stars

Floating menu is great as it no more resize and then redraw the main window when you show the menu.
For me setting hidemenubar.floating.marginTop = 7 just replace the navigation bar by the menu.
Or hidemenubar.floating.marginTop = 42 if you prefer to replace the personal bar.

This review is for a previous version of the add-on (4.0.20101011).