I need help I dont know what to do I got windows vista home basic and i use firefox and several times every day after a while when my browser does not work and when I restart firefox I get the file downloader with the message application/octet-stream and i'm asked to save or open the file and there is no file extension. And then for example when i try to go to Tmf I get the file downloader and I get Tmf as a php file. To get everything to work I have to restart my comp.