Constant image glitch/bug in Flash games and videos
I have a bug since version 25.0.0.127 that never happened before. It happens on Prizee.com, a Flash games website, the two popular adult webcam websites (which I'm not sure if I can link to here) and even adult video portals.
On Prizee, it happens every few seconds (and after a while every split seconds) that the games show a heavily zoomed in part of the image. I need to scroll the page down or up a bit, then it shows the normal games graphics again. But doing so every few seconds is tedious, the games are totally unplayable due to that glitch.
The similar glitch happens on the adult websites. If I hover over a video stream with my mouse, it zooms in on some watermark graphics that might be overlayed, on video portals it zooms in on the video controls. So I'm kind of seeing the upper right corner of a normally 16 pixels big play button zoomed all over the video.
I can't remember changing any options in Flash, so I guess it's a bug with this version? I'm using Windows 7, 64-bit Firefox, but 32-bit Flash Player.
An example from Prizee, the top image is how the game normally looks, bottom part shows the glitch that happens every split second:

