Firefox now has multi-touch gestures for Macbooks

Firefox’s latest build beta 2 for the version 3.1 has multi-touch gestures for MacBooks rolled up its sleeves. The currently supported gestures are:
Swipe Left: Go back in history (hold Command to open it in a tab)
Swipe Right: Go forward in history
Swipe Up: Go to the top of the page
Swipe Down: Go to the end of the page
Pinch Together: Zoom out
Pinch Apart: Zoom in
Twist Right: Next tab
Twist Left: Previous tab