"Several billion people are going to come online in the next few years with their first smartphone, " said Mozilla Chief Operating Officer Jay Sullivan.

WSJ: The Quest for a Third Mobile Platform

Jay Sullivan, chief operating officer of browser maker Mozilla Corp.

WSJ: Web Browsers Are Reinvented

"Firefox OS will break down the walls between apps and the Web because Firefox OS apps are built using Web technologies, like HTML5, " said Jay Sullivan, Mozilla's senior vice president of products.

CNN: Mozilla to launch mobile phones with Firefox