Nearly a year after Gary Kovacs announced he's stepping down as Mozilla's CEO, and the company's board of directors has finally appointed a new leader: former CTO Brendan Eich. Eich has been involved with Firefox from the very beginning, having invented JavaScript back in 1995 when he was an early developer for Netscape Navigator. As Mozilla's new CEO, Eich's not only responsible for Firefox as a web browser, but also as a mobile operating system. To that end, Eich has brought on Li Gong, who's been instrumental in building up Firefox OS, as Mozilla's new COO. Indeed, in an interview with CNET, Eich has said that Firefox OS is his highest priority. His goal right now is to get Firefox-powered handsets in as many hands as possible, especially the $25 ones. Eich certainly has his work cut out for him however, as the company isn't even ready to sell its handsets in the US just yet.