This will tell you how to rearrange, hide, add, and remove toolbars in Firefox. For those who are unfamiliar with the terminology, a toolbar is the (usually gray) box above the area that the web site is displayed. Menu Bar: This is the toolbar that contains the browser menus (File, Edit, Help, etc.). Navigation Bar: This is the toolbar that contains the Location Bar and the buttons used to navigate web sites. * Bookmarks Toolbar: This is the toolbar that contains your Bookmarks Toolbar Folder bookmarks.