I use IE only because the issues I've had with Chrome and Firefox are marginally more irritating. All the same, I'm thinking of switching anyway because of the lack of customization. And yes, the URL does change. Then it opens that message box about viruses, and clicking anything in the box leads you to a fraudulent "Virus Report" page. I'm not sure at what point it actually manages to put malware on the computer, but it's been pretty successful in the past.