Quick Settings Enhancement is an addon available on marketplace, code source being on Github

As seen on this picture

this addon is very useful. It's add additional functionalities in Firefox OS quick settings, including NFC, Silence Incoming calls, Flashlight, Internet Sharing, Lock Orientation, Battery Saving Mode, Geolocation, Enable USB Storage, Developer panel configs.

All these options are already available via Parameters menus, but now they are ready to used, not hidden in a menu.That's useful and cool.

The one more thing is a Torch light, ligthing the flash led of the phone (when available on the phone, like Sony Z3C for example).

An addon become indispensable. Thanks to Philipe, Mozillien, for for making me discover it.