This video shows a simple menu layout for Firefox.
An important change is the inclusion of an Add-ons menupopup. The eliminates the main problem caused by the removal of the Tools-Menu.
I’ve also added ways to access the Bookmarks and History sidebars, and I’m playing with a Page menu like in Opera.
This was mocked-up using the Personalized Menu extension and the More Tools extension, along with some new code.