IE is definitely not the dominate browser! The only reason people don't use firefox is because they are too lazy and don't care or they are not computer educated and don't know about being protected. Most people use IE and are loaded with spyware,adware,malware,viruses, ect. however if they switched they would easily find that Firefox is a much smarter choice and is less hassle. Furthermore Firefox has many teams of technicians working to keep up the protection against viruses and all the things I mentioned earlier. The hackers send invasion programs through IE for the same reason they don't like Microsoft. IE is the main component of Windows and since it is the easiest and most linked to Microsoft that is why they send the viruses through it not just the fact that it is the most highly used right now.