Since I've been using FF version 13.0, scrolling within the web page with my (wacom) pen tablet dousn't function anymore. The functionality stops working after one or 2 wipes, I have to click on the tablet again and ''when'' it works I have to repeat this step till the end of the page). I downloaded the beta-release but that doesnt' make any differrence. In Google Chrome and Safari there's no issue scrolling down (just like in FF version 12.0). Friends using FF on a Mac i.c.w. a pentablet consider the same problem.