The Firefox OS Simulator is a desktop PC tool that shows you what apps will look like on a phone that is running the Firefox OS. It is the easiest way to try out apps on Firefox OS before submitting them to the Firefox Marketplace. The Firefox OS Simulator was formerly called "r2d2b2g", but that name is too difficult.
The Simulator is packaged as a desktop Firefox add-on. You can use any recent version of Firefox, including released, Beta, Aurora, or Nightly versions.
Installing Firefox OS Simulator
- Using Firefox, go to this link: https://addons.mozilla.org/en-US/firefox/addon/firefox-os-simulator/
- Click Add to Firefox. It's a large download. Follow the prompts that appear.
Starting the Simulator
- On the Tools menu, go to Web Developer and click Firefox OS Simulator. (If you don't see the Tools menu, try pressing Alt.) The dashboard appears.
- Click the Stopped button. It changes into the Running button and Firefox OS boots up in its own window. The default size for this window is 320x480.
Note: You can also start and stop the Simulator in the Developer Toolbar command line using
firefoxos start and
Navigating in the Simulator
Imitate swipe motions by clicking and dragging with the mouse.
To get back to the home screen, click the home button at the bottom of the Simulator, or press the Home key on your keyboard.
What is the back key? Esc?