Firefox is a free and open source web browser—the largest one that isn't tied to a corporation. Yet there was a briefly a time when Firefox was also a smartphone operating system. Firefox OS ...

Mainstream customers need not apply, but programmers who like the openness of Mozilla's browser-based Firefox OS will soon get a chance to help make it a reality. Stephen Shankland worked at CNET from ...

Firefox maker Mozilla aimed to upstage Apple and Android on mobile phones, but scrapped its alliances with Verizon and other carriers. That's where a new contender comes into the picture. Stephen ...