Before I show you how to install and run firefox OS, remember one thing this is a developers preview from mozilla firefox, may be your phone get slow, so lets see how to install
1. Go to google in phone or desktop browser, type and search for “firefox 2.5 OS download” click on first link that should be mozilla official website and tap on “Get the Android App”
2. After download apk file, the file name will be “B2GDroid-mozilla” tap and install this file, make sure your known source is check on.
3. After installed tap on “Home” button and select “Firefox OS Developer” and tap on “Just Once”
4. You can uninstall this like other app uninstall process.
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