Firefox 3.1 Build with MacBook Multi-Touch Gestures

Owners of MacBooks with multi-touch trackpads can try out an experimental Firefox 3.1 build that supports finger gestures-swiping left and right for back and forward, pinch zooming, and twisting between tabs, amongst others. The gestures may or may not make it into the final 3.1 release, but at least one developer finds the tab-switching twist a big convenience — via lifehacker