Firefox OS, codename'd "Boot 2 Gecko" is Mozilla's project on putting together a fully Web-based OS that will take on the smartphone market in 2013. The OS will be based on HTML5 and will be more open than Android.
Mozilla is now allowing Windows, Linux and Mac users to test early builds of Firefox OS. First of all download the Firefox OS build from here and then go to Gaia Hacking Wiki page for instructions on how to set up your PC to install the Firefox OS build.
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