LessChrome HD for Firefox

Developer's DescriptionBy Mozilla LabsHide the URL bar and other toolbars and experience full screen browsing.LessChromeHD for Firefox add-on auto hides the URL bar and other toolbars and shows it only when necessary. This restart less add-on hides the toolbars like the location bar navigation until you point at the tabs to get them back. LessChromeHD for Firefox is a free extension that is available for Firefox, and once installed it does everything it can to maximize the amount of screen space that is given over to displaying websites. You wonder how this is different from working in full screen mode, but after spending a few minutes using the extension, it quickly becomes clear.