> Firefox is super customisable. I am using the Littlefox theme, meaning my browser is super teeny-tiny.
> The average IE user has installed so many daft toolbars and things that they are viewing the internet through a postage stamp sized window.
> The security settings are great and my browsing habits disappear each time I shut firefox down.
> I have NoScript installed so all of those ridiculous flash ads which make your system go nuts won't bother me at all.
> It has a built in search bar to which you can add as many search engines as you like.
> The download manager is extremely useful.
> It remembers your session if your system crashes.
> It's open source and I only use open source software on my machine- it won't tinker with the DNA of your PC
> You can download a portable version for your USB stick
Basically, it can be the browser you want it to be.