hypnosec writes: Mozilla has released a desktop version of its Firefox OS allowing developers to have a sneak peak the OS before it is officially made available on phones. Mozilla has ensured that it gets the highest audience for the Firefox OS and for that it has released the builds for all three major desktop operating systems: Mac, Windows, and Linux. Mozilla's Tony Chung wrote in a blog post, "If you're a web developer, you can use these builds to create and test your webApp against." Gaia/Hacking has the setup instructions. You would need a Gaia profile to launch the build otherwise you might encounter a black screen. Further information is available in Chung's blog post.