FOSSMeet 2016

FOSSMeet is an annual event at NIT Calicut that brings together the Free and Open Source Community from around the country.

Akshay S Dinesh


Introduction to Firefox OS and Building Web Apps for Firefox OS

Submitted Nov 21, 2015

  • Get introduced to the fundamentals of Firefox OS
  • Gonk
  • Gecko
  • Gaia
  • Understand how open web apps are first class citizens on Firefox OS
  • Learn how to build an app for Firefox OS
  • Firefox WebIDE
  • Interacting with Web APIs


Firefox OS is the (primarily) mobile operating system from Mozilla. The mission of Firefox OS can be summarized as keeping the open Web relevant on a mobile dominated Internet by making use of open APIs that web pages can interact with thus making it possible to build rich and interactive applications using Web technologies.

Firefox OS has three components:

  • Gonk, at the lowest level interacts with the hardware
  • Gecko, the rendering engine that runs all the apps
  • Gaia, the interface itself

The uniqueness of Firefox OS lies in the fact that a Web site or a Web app becomes a first class citizen on the platform - ie, they won’t be forced to run from inside a browser/webview and can access a lot of the hardware features (like vibration, battery status, geolocation, etc) just as easily as an installed app on other platforms would be able to. There’re also different permission levels (privileged APIs, internal APIs) to avoid security issues.

Building an app for Firefox OS or contributing to the front-end itself is very easy if you know some web development. Firefox ships with WebIDE which’s a full featured IDE for developing and debugging open web apps.

We will learn the basic anatomy of a Firefox OS App, some basic HTML, CSS and JavaScript required to get started with an app. We’ll also explore some of the APIs available and how to use them to easily develop apps.


  • Laptop
  • Firefox Developer Edition
  • Internet (useful if you want to look up documentation)

Speaker bio

I’m a Mozillian who builds websites and web apps for fun. As a proponent of the open Web, Firefox OS lies close to my heart. I intend to convey my passion for open Web to you and also help you build something cool with Web technologies.



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