Closing as duplicate. Please continue with the original [/questions/1159851] ~J99 I don't know how to fully explain exactly what's happening here, except to say that Firefox is now always on top of everything, even when in a reduced-sized window, and has to be fully minimized to use another window. None of the suggested answers or responses have worked, or are relevant to this issue from my point of view. Am I going to have to start using another browser, or is there a legitimate setting that can be altered to stop this behavior that just suddenly started a few days ago?