Everyone uses their choice of a browser to get to the internet, so this is not a question of which one do you use or why. You use what you use because it works. If it didn't you would change browsers.
My question is do you have a second browser on your computer?
Not really a simple question because if you don't like IE you load FF or something else and you automatically have two browsers. I haven't head of any people uninstalling IE and I'm not sure if you can.
So, if you have multiple browsers on your system tell us why. Is it only to provide yourself a back up to get to the internet?
Are there conflicts that can occur because of having multiple broswers?
Slow day for me, I may even come up with more questions.