My Firefox windows keep jumping from one to another
When I open a new Firefox window, after some time if I have another firefox window (not tab) open, for some reason my computer will jump from one I am currently using to the inactive one, although it still shows it as being inactive unless you click on it.
Firefox also jumps to Word or other such documents. Again this has only happened since downloading Firefox 12 (after upgrading from a brief period with Firefox 11 as well, where it also happened, but not earlier versions).
Wšykne wótegrona (1)
as you've described the issue it sounds more like a general external issue on your os and not related to firefox. you might want to do a deep scan for viruses/malware on your system & have a look at this suggestion: http://pcsupport.about.com/od/windows.../stealingfocus02.htm