Productivity Sauce

The Hide Navigation Bar extension for Firefox is yet another one-trick pony for users who want to free up a few extra pixels of screen estate. As the name suggests, the extension allows you to hide and show the Navigation bar using a keyboard shortcut (the default one is F2). This can come in particularly handy on netbooks where screen estate is at a premium. Combined with the Personal Menu extension, Hide Navigation Bar lets you reduce Firefox's interface to the absolute minimum.