Google Chrome Overtakes Internet Explorer as the Number One Browser: http://lifehacker.com/5911979/google-chrome-overtakes-internet-explorer-as-the-number-one-browser
More interesting: Chrome overtook Firefox end of 2011. I just think: Firefox became too fat, sometimes it takes so long to load that I forgot why I launched it. And: the tactics of many version jumps per year has made a lot of users angry. The permanent fear that some essential add-on might not work after the next Firefox upgrade has made this browser more unreliable. Chrome is much smarter in doing these updates under the cover and I believe Firefox is now going the same way for future releases.
Firefox is still my preferred browser though, mainly because of some of its great add-ons, even many meanwhile have a Chrome counterpart, but I started using Chrome more often.