The latest data from Net Applications indicates that Internet Explorer lost market share in December to browsers from Mozilla and Apple.

According to the Web metrics provider, Microsoft's browser market share has declined by more than six percent since February 2008. The browser held a 68.15 percent market share in December -- its lowest in years.

By contrast, Mozilla Firefox's market share rose one-half of a percentage point from November and has climbed more than four percent since February to reach 21.34 percent in December.