Bad News for Microsoft: Windows Drops Below 90% Market Share–Firefox Above 20%

NetApplications is out with a couple of new metrics of market share for operating systems and browsers, and the news is good for open source. Topping their findings, Microsoft Windows' market share has dropped below 90 percent for the first time in its measurements. The share erosion is largely attributed to increased interest in the Mac platform, but Linux is cited as on the rise as well. In addition, for the first time since it launched its metrics, NetApplications' data shows Firefox's market share topping 20 percent.

On the browser front, NetApplications finds Firefox to have achieved 20.78% market share for the month of November, and the complete breakdown for browser market share is seen in their graphic below.