Microsoft's Internet Explorer 7 is no match for Mozilla Firefox 2.0. When it comes to browsers, Microsoft has the dominant position on the market, accounting for a share of in excess of 78.03% while Mozilla has just managed to grow to 15.42%. However, when it comes to the face-off between Internet Explorer 7 and Firefox 2.0 in the context of user uptake, IE pales in comparison with the open source browser.

Market Share by Net Applications made public at the beginning of May the statistics for the adoption of IE7 and Firefox 2.0. In the market segments dominated by Internet Explorer and Firefox, both IE7 and Firefox 2.0 have to erode the shares of previous editions.

Microsoft's share of the browser market is divided between Internet Explorer 6 and Internet Explorer 7. Made available for download at the end of October 2006, IE7 managed to grow to an estimated 30.56% of the market. Still, IE6 owns the lion's share with a percentage of 46.82 points. There is a clear trend in the adoption of IE7, and it points to the fact that users of the previous version of Internet Explorer are not too keen on upgrading.

Additionally, despite the fact that Windows Vista ships with IE7 and that Microsoft is pushing the browser as an update via Automatic Updates, the browser has a slower adoption rate when compared to Firefox 2.0.

Mozilla also does not enjoy the user base of Internet Explorer. But while Internet Explorer 7 is used by approximately 40% of IE users, in excess of 65% of Firefox users have already updated from Firefox 1.5 to version 2.0. Mozilla has announced that it will retire support for Firefox 1.5 in mid May, giving over 30% of its users a month of extra time to jump to the latest version. In April 2007, Firefox 2.0 has a market share of 10.23%.