Hello Firefox OS Enthusiasts. The latest stable version of Mozilla’s OS is Firefox OS 1.3, which is already available on Alcatel One Touch Fire and most probably, the next Alcatel One Touch Fire smartphones and tablet. While a preview of Firefox OS 2.0‘s GUI has been already made available, the Firefox OS Simulator 1.4 and Firefox OS Simulator 1.5 are already available for free download, via the Mozilla FTP account.
After you install Firefox OS OS simulator, also install the ADB helper (via double-click, as if they were some add-ons).
Next, open the Firefox browser and go to: about:app-manager and start the Firefox OS simulator from the graphical user interface.
For those who don’t know yet, Firefox OS is a new Linux based mobile operating system, built by using the new HTML5 technology by the Mozilla developers. For now, it is used as default on smartphones with modest hardware specs, developed by LG, ZTE, Alcatel and Geeksphone, while Firefox and Spreadtrum are already working on a 50$ Firefox OS based phone.