how firefox works

I'd just read an article "how firefox works" from the number one website in the world-how stuffworks.com. This simple browser not only provides an alternative to get on line, it specifically solve an impending problem of my working partner, which her "IE" couldn't functionly show the content of the webpage in a lot of websites-the page will go blank immediately. Magically, after using the "firefox", all the problems seem to be solved instantly.