
Firefox OS phones on sale
Apr 23, 2013, 9:46 AM EDT

AFP/Getty Images/Josep Lago
Mozilla is known for its support of the open source internet, and its partnering with phone makers to issue the first Firefox OS mobile phones furthers its goal for developers. The company's two smartphones went on sale April 23 through Geeksphone and are designed for developers to create web apps inside Mozilla's HTML5-based system.