I have edited the correct about:config options to have the twist left and right gestures switch to the left and right tabs respectively. However, I cannot use these gestures on my touchpad, but only on my touchscreen. Are there other options I need to change to have this gesture work on my touchpad as well? Or maybe there is a setting in Windows that overrides any application's use of the touchpad? My machine is the new Surface Pro and I am using the detachable keyboard.