how do i add touch suport in FireFox?

I have a Ubuntu machine with a 24" touchscreen and it is working fine. I can move the mouse, do gestures with several touch points and such so the hardware is working fine. Now I wonder if it is possible to make a browser interpret the events as touch and not as mousedown, mousedrag etc. HTML5 has really good support for touch and multiple touch and I would like to develop web applications for this setup. Does anyone have a clue on how to do this? Tho it seems that this is only implemented in the ms windows version.