great add-on Rated 5 out of 5 stars
can't always tell if there will be an add-on for a minor irritation with Firefox, this one does the job. screen real estate is important so why have a quarter inch of unused space on the top of FF window. this little app fixes that by moving the menu bar up into unused space. cool and simple.This review is for a previous version of the add-on (2.6.0).