Explorer vs. Firefox

The major differences I noticed between Internet Explorer and Firefox are the speed and the toolbox and broswer display at the top of the window.

Firefox can be really really really fast, or really slow depending upon the server.
Explorer is usually relatively fast or medium speed, can't really tell the differences between servers.

Firefox's window design is clear, spacious, modern.
Explorer's window design is round and cluttered with too many options (such as "upgrade your toolbar now" and "bookmarks"). hmm... Maybe I need to update my toolbar so it can look like Firefox's sleek design? Oh no, nevermind, I just clicked "Learn More" and it only is giving icons for each option (which is still clutter).

When you type in a web address to Firefox, seperated and organized options come up in the sroll box. When you type a webaddress into Explorer, it simply gives you the addresses of all the links you've visited on that website until it narrows down based upon how much of the address you type in fully.

I'm comfortable with Explorer since I've been using it since '99, however I think I may begin to get more acquainted with Firefox.