I doubt regular themes will work with mobile and the UI isn't XUL based at all. Sriram appears to be working on this. currently i think its not possible to use theme on Firefox for Android :)

• you can go to http://www.getpersonas.com/en-US/ and get themes for Mobile but these are just lightweight themes

Modified January 14, 2013 2:40:14 AM PST by Swarnava