Either when I update Firefox or when I update Java (I'm not sure which is responsible yet), ask.com becomes my homepage and my default search engine. When I type a query into the address bar and hit enter ask.com comes up instead of Google. I can fix my homepage easily but I have to use the about:config to change my search engine back which I really do not like to have to do. How can I prevent this? I think I've had viruses I prefer more than Ask.com's search page full of ads!