Two-finger scrolling stops working after a while I am running into a strange problem. After a few minutes of using Chrome or Firefox, two finger scrolling on my trackpad stops working on these applications.

Every time I restart these applications two finger scrolling scrolling works again, but then after a few minutes, it stops working. All my other gestures work fine (one, three and four finger movements) except two-finger scrolling. 

I have no idea what is causing this. I haven't had this problem before until today.

I am working on the latest version of Mavericks on the latest MacBook Pro.

Any thoughts?
A simpler solution that seemed to work for me in Firefox:

open about:config

and then find the properties

browser.gesture.swipe.left
browser.gesture.swipe.right


and set them from Browser:BackOrBackDuplicate and Browser:ForwardOrForwardDuplicate to empty. It's a workaround for a known bug ( https://bugzilla.mozilla.org/show_bug.cgi?id=927702 ).