Screen tearing while scrolling in Firefox in Win 10? Just noticed some odd screen tearing today in Windows 10 with both Firefox and Thunderbird. It's most noticeable if you get a page of images up, like a google image search and then scroll slowly down with the mouse wheel. The screen tears roughly a couple of cm down from the top. Weirdly if you keep on scrolling down a page then it goes away, and then comes back when you scroll back up again. Chrome with the smoothscroll extension works fine. Is anyone else getting this? I don't think it happened before todays Windows Updates?