My windows 7 pc with firefox 3.6 stopped working properly - I upgraded to the latest version but get the same effects. With the BBC iplayer it plays on the main screen but not on the pop-out. Hotmail does not work at all - I have tried system restore and tried uninstalling and then reinstalling version 3.6, 7 and 8 with the same result. Even their own feedback does not work unless I restart in safe mode. Everything works correctly with IE 9 but I prefer firefox. Does anyone know how to get it working properly again?