Thats strange. If you kill your webbrowser window and start a new one and login, do you still have issues? (A non-working js-script could have been cached by your current session)
Do you see any javascript error (in bottom left if you click the icon) - if so what does it say?
Aha, thanks for the info. I was able to replicate the problem and found the cause (I did a small change to the minimap to center on buttondown, rather to wait for a full mouseclick, as you normaly want to just press the button and drag).
its fixed now, and works in my FF. Could you please verify it works for you, and I´ll close this bug