[Soundgod]

In order to switch to Firefox or for those who prefer, Netscape Navigator (both Mozilla based web browsers) you need to download and install either one or the other.
The easiest way to do this is to go to download.com and either search directly for Firefox or follow links to the browser section. When there, find the latest version of the Firefox or Netscape browser and download. Once downloaded, double click on the program you just downloaded and install.
Once it's installed, launch that browser instead of IE either using desktop icons or the start menu.

I too prefer Mozilla based browsers to IE, but sometimes, there are things that IE does with less effort than the Mozillas.