If I go somewhere, like to someones house, a building or wherever and I see they use Internet Explorer, when no ones watching, I have a strong urge to install Firefox and all the cool add-ons I use and stuff. I'm serious.
I try to install it as many computers as possible.
I try to install it as many computers as possible.

You're my hero.
Internet Explorer is a terrible browser. I've tried to convert some people to Firefox, but a lot of them are too stubborn to change.
I've always hated Internet Explorer because it's slow, a lot more vulnerable to attack sites, and crashes way too often (one time I literally got about 20 error reports before the home page even loaded)
We all know IE is so 20th century lol.
What happens if they catch you in the act? lol
But really... leave the plebs alone mate, you're not doing anybody any favours leaving signs of intelligence where only ordinary mediocrity lies.
I have install files on my portable HDD that I always have with me when using another PC.
I even go as far as importing bookmarks, setting it default, and replacing the IE shortcuts on the taskbar, start menu, and desktop.