Makes the menu actually usable Rated 5 out of 5 stars

Whoever thought up the idea of having menu entries with pop-out menus that go over the right section of the menu should be shot. This great addon allows me to actually make the firefox menu usable. However, it needs updating to 6.*
While it does let you install it on 6.* it breaks the menu completely, so fix it soon!

This review is for a previous version of the add-on (5.0.5.1-signed).