1 One train of though that the landlord might have: I can ask the tenant to clean so that it's perfect, but since the laws don't allow me to deduct for normal wear and tear, then it doesn't have to be perfect when the tenant moves out.
For the HTML5 powered operating system by Mozilla, see Firefox OS. Amazon FireOS is an Android-based mobile operating system produced by Amazon for its Fire Phone and Kindle Fire range of tablets, and other content delivery devices like Fire TV; the tablet versions of the Kindle e-readers are the Fire range. It is forked from Android.
The beauty of Android is that it's an open platform.. But Amazon's Kindle Fire, which is based on Android, is semi-closed. Unless you do some tweaking, you're stuck with Amazon's ecosystem of apps, movies, and music.