Despite Microsoft including Internet Explorer in all its operating systems, people are installing FireFox as their default browser at an astonishing rate. I take pride in the fact that all but two of the sites I help maintain have already seen FireFox (and sometimes even Safari) overtake Explorer (all versions combined) as the most used browser.
FireFox far surpasses IE on any even remotely tech-oriented website.
The sites that still get more Explorer traffic are parish and Archdiocesan websites (which are typically visited by an older demographic, and/or people who are using office computers).
Germany, apparently, is the first country in which Explorer's long-standing crown as the most-used browser has been taken away by FireFox.
Of course, having 99% of the web use FireFox would be just as bad as 99% using Internet Explorer. I'm hoping Safari, Chrome, FireFox, and Internet Explorer all stay around awhile and help spark more innovation and speed in the browser arena.