 IBNLive | Firefox smartphone system challenges Android, iOS Inquirer.net Mozilla's Chief Executive Officer (CEO) Gary Kovacs gives a press conference to present the new Firefox OS mobile operating system in Barcelona on Sunday, Feb. 24, 2013, a day before the start of the 2013 Mobile World Congress. AFP/JOSEP LAGO ... Mozilla takes on Google's Android, Apple's iOS Firefox phones set to take on iOS, Android Mozilla Debuts Firefox OS, Will Take on iOS and Android |