Firefox Apps
https://blog.echoplex.us/2014/01/25/firefox-applications-are-easy
https://blog.echoplex.us/2014/03/23/exciting-changes-in-firefox-for-android
https://developer.mozilla.org/en/Apps
https://hacks.mozilla.org/2014/05/introducing-translationtester-and-localization-support-for-open-web-apps