One of the first Firefox OS phones, the ZTE Open (http://www.gsmarena.com/zte_open-5320.php), took the unusual route of going up on sale on еБay. It was available in the US for $80 (http://www.ebay.com/itm/271258990669) and in the UK for (http://www.ebay.co.uk/itm/ZTE-Open-3G-Unlocked-Firefox-OS-Cellphone-Orange-Ebay-exclusive-/171104024854?pt=UK_Mobile_Phones&hash=item27d6983916)