Everything that is not the browser display field has turned red-- scrollbars, information bar at the bottom, and the toolbars at the top. The tabs are different shades of red except the Active one, which is still gray. I was updating my Adobe Flash player when this all of a sudden happened. It does not seem to be affecting my using Firefox, just I would like to change it back. Plus it might be a symptom of something else. I am going to try and uninstall the Flash Downloader plugin.