B2G OS

B2G OS is a complete, standalone operating system for the open web. It is an open source project developed by the Mozilla community and forms the basis of Firefox OS products.

B2G is a community maintained open source operating system for smartphones, tablets, smart TVs and other connected devices. The project was started in 2011 and is based on the Linux kernel and Gecko rendering engine. The entire user interface is built using web technologies (HTML, CSS and JavaScript) and can be used to launch and use web applications. Since Mozilla discontinued their commercial Firefox OS smartphone program the smartphone part of the project is entirely maintained by Mozilla's volunteer community, and branded as B2G OS.

NoteCall for contribution & Call for App adoption has been made to gather more people, feel free to share it !

How you can help

  • File bugs (meta bug is bug 1252143)
  • Fix bugs
  • Help us fix failing tests
  • Port a gaia smartphone app:
    1. Turn it into a webapp (or)
    2. Turn it into chrome:// (why?) & report back  
  • Port B2G OS to your phone or help us to maintain a port
  • Help fixing bugs in Gecko
  • Help improve & translate this documentation & wiki
  • Propose & implement new smartphone features

   Get involved

Supported Devices

Information on supported phones running B2G OS:

For more information see this page.
Your device is not in the list ? Try Mulet on desktop

Note: some pages have been moved to the MDN Archive — let us know if you have trouble finding anything, or if there is anything in the archive that you feel should be moved back to this section.