"Fullerscreen is an extension that gives Web pages in Firefox the full run of your monitor. If you spend much time using Web-based applications like Gmail, Google Notebook, or Backpack, Fullerscreen is a must-have addition to Firefox.
"Firefox already has a Full Screen feature, which you can access by going to View -> Full Screen, or by pressing F11. However, the standard Firefox full screen view still includes a location/toolbar and a tab bar, if you have any tabs open..."
