Firefox does not work - no drag&drop

[GoogleCodeExporter]

What steps will reproduce the problem?
Trying to play the game https://apps.facebook.com/hungryburgerbk/ Click on 
LANZAR and drag the hamburger to destroy the fries.

What is the expected output? What do you see instead?
You are supposed to be able to click and drag the hamburger to throw it away 
(angry birds style) 

What version of the product are you using? On what operating system?
Firefox on Windows 7.

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 27 Oct 2014 at 4:22