Firefox OS is the mobile operating system developed by Mozilla, based on Linux and Firefox's powerful Gecko rendering engine.
From a product perspective, Firefox OS is Mozilla's (and our OEM partners') branding and support services applied on top of Boot to Gecko (B2G), which is the operating system's engineering codename. Boot to Gecko is developed by a team of engineers inside Mozilla plus many external contributors from the wider Mozilla/open source community.
Head over to our App Center for all the information you could possibly need on building open web apps that can be installed on Firefox OS !
Guides for platform developers on how the different components of the Firefox OS platform fit together and work.
Guides covering building and installing Firefox OS on an emulator, compatible device, or desktop simulator.
Firefox OS books
There are a number of published and in-progress books covering various aspects of Firefox OS development. For more details, go to Firefox OS Books.
Note: We are keeping track of ongoing work on Firefox OS documentation on our Firefox OS documentation status page. If you want to help contribute to Firefox OS documentation, please have a look at this page to see what work needs tweaking!