Firefox is much more than just a trendy browser. It combines beautiful GUI design with user-friendliness, security and many many plugins.
Firefox users know what they want, they know how to differ, they know how to innovate, not imitate.
A Firefox user has this philosophy about life in general, as he is not excited by trends and expensive material. He knows he has options; just like with his t-shirt! His favorite t-shirt is a simple, black one. Oh, with the Firefox logo on it...
And that, my friend, is what makes his favorite t-shirt priceless!