{ Ctrl + Shft + A } opens the Add-ons Manager tab.

You can access the Tools menu by hitting the Alt to temporarily display the old Menu Bar, then hit the T key to open Tools. The other Menu Bar items can be opened by hitting the appropriate "hotkey" - like F for File.

• New Old Menu: https://addons.mozilla.org/firefox/addon/new-old-menu/
• Personal Menu (Personal Firefox Button): https://addons.mozilla.org/firefox/addon/personal-menu/

that's a valid workaround, the-edmeister, thanks!

That said, this seems like a gross oversight in FF4 development - there are many extensions that only have tools menu access, so hiding that menu behind this sort of misdirection seems unwise.

col-el - thanks for the links - New Old Menu seems to do exactly what I would like to see built in to firefox....