To access the classic Tools menu, press Alt+t or just tap the Alt key to display the menu bar. To keep that bar full time instead of the orange Firefox button, use View > Toolbars > Menu bar, or right-click a blank area of the tab bar and choose Menu bar. Does that work? ---- Edit: I don't use that add-on, but some add-ons now integrate into the Web Developer sub-menu on the Tools menu, so you might check there as well.