I have bought an asus transformer book t100 and set mozilla firefox as the default browser but when used without the external keyboard the tabs and close buttons are too small for my fingers. I assumed there would be a tablet version similar to that on my smart phone but I can't seem to find/activate this if it exists. some comparison websites seem to have reviewed the big browser companies and review firefox for tablets using a touch/metro version but when I downloaded the most recent beta version i still cant find how to switch modes.