Some people like to place all their Firefox toolbar items on the same row as the menu. In order to save horizontal space, you can remove top menu items that you don’t use. Add the following code to your userChrome.css file:

/* Remove the Go and Help menus
   Id’s for all toplevel menus:
   file-menu, edit-menu, view-menu, go-menu, bookmarks-menu, tools-menu, helpMenu */
#go-menu, #helpMenu {
   display: none !important;
}
Permalink