=== Run in Firefox Nightly ===
''' Unfortunately, Nightly is no longer a supported developing environment for B2G. '''
There were some issues in Firefox Nightly to prevent running Gaia in it in past few weeks. There is a new framework called [[Mulet]] which enables some missing modules for Firefox OS. We have to download the mulet enabled version, named firefox-36.0a1.en-US.xxxxxx, at: