7. Developers working with Galaxy S II
Mozilla's developers have been using the Samsung Galaxy S II to write and test Firefox OS. The Galaxy S II is a smartphone that originally runs Android 4.0.3. It comes with a 4.3-inch screen and a Qualcomm processor. The final reference device -- the first to be sold with Firefox OS on it -- probably will have different (and likely more powerful) specification. Such phones will be manufactured by Alcatel and ZTE.