<p>BARCELONA Mozilla Foundation announced Sunday it will launch in mid 2013 its widely anticipated Firefox operating system for smartphones in a direct challenge to the duopoly of Apple's iOS and Google's Android.</p><p>Mozilla, which campaigns for open development of the online world, showed off the first commercial version of the Firefox OS on the eve of the opening of the world's biggest mobile fair in Barcelona, Spain.</p><p>Smartphones equipped with Firefox OS look familiar to those on other systems, with an array of apps, or application programmes, to be made available on an online store, and a mapping programme developed by Nokia.</p><p>"With the support of our vibrant community and dedicated partners, our goal is to level the playing field and usher in an explosion of content and services that will meet the diverse needs of the next two billion people online," said Mozilla chief executive Gary Kovacs.</p><p><a href="http://www.google.com/hostednews/afp/article/ALeqM5jLTNUGwbDjbdK15iGBoUYQ3aYo8Q?docId=CNG.69221d4ca7adc58eab5c513edc801bb0.831">Keep reading...</a></p><p>Read also:</p><p><a href="http://blog.laptopmag.com/mozilla-debuts-firefox-os-will-take-on-ios-and-android">Mozilla Debuts Firefox OS, Will Take on iOS and Android</a> (LAPTOP Magazine (blog))</p><p><a href="http://reviews.cnet.com/operating-systems/firefox-os/4505-3671_7-35619075.html">Unspectacular Firefox OS is OK for low-end phones (hands-on)</a> (CNET)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dODnbSY1cI09N4MoqzoOGJGiESgFM&ned=us">108 additional articles.</a></p>