Carriers are "still trying to learn how to sell BlackBerry 10 to the market as a whole, and you also have Apple and Android as well as Windows," Llamas said. "People know the Firefox browser, but there's no history with a Firefox OS."
"I can't see Mozilla gaining any real traction [with Firefox OS] in North America, and minimal traction in other areas of the world," said Jack Gold, an analyst at J. Gold Associates.
Chris Lee, director of the Firefox mobile OS at Mozilla, demonstrates the new mobile OS on the ZTE Open smartphone and the Alcatel One Touch.
Sign up for CIO Asia eNewsletters.