An anonymous reader writes "Mozilla on Thursday announced the release of Firefox OS Simulator 3.0, polishing all the features in the preview release as well as making a few more improvements. You can download version 3.0 now for Windows, Mac, and Linux from Mozilla Add-Ons.
The following features included in the simulator are now functionally stable, according to Mozilla:
Push to Device.
Basic geolocation API simulation.
Stability fixes for installation and updates to apps.
Newer versions of the Firefox rendering engine and Gaia (the UI for Firefox OS)."