Make the Most of Your Big Screen and Firefox
Do you have a fancy wide screen monitor? You’ll need 1900 pixels or more, typically a 21″ or the 17″ macbook to make the best use of my latest Firefox add-on.
While browsing, you can at any point push your window to the left, right, or full screen with modifier + arrow keys. You can also promote the current page to a new split window in one key command.
Windows 7 has recently come out with this shortcut for left and right split screens… system modifier key left and right arrows. Wonder where they got that idea from? 
Install it for Firefox 3.x at addons.mozilla…bigscreen.