I have been in touch with Wacom and they have confirmed the following: Wacom tablets, pen and mice, have mappable buttons and features that are programmable to perform whatever functions are desired. Furthermore, they can have individual programing for each program being operated. So, say, Photoshop, finder and Safari could all use the same button on a pen, but that button would do different things in each (left click, right click, keystroke etc) Firefox, some time ago, broke this ability and ignores/disallows program specific functions to be applied. This is the only piece of software I have ever seen that doesnt work with wacom products. Please fix this issue. (I have a tendency to love applying "Middle click" to the pen's button to allow for page scrolling at a wave of the hand.)