The Firefox Marketplace has apps designed for your Firefox OS device. We'll show you how to find and install them.
WhatsApp isn't directly available on Firefox OS, but you can still use a WhatsApp client on your device or chat with friends using Facebook or LINE.
This article describes how to change the language on Firefox OS.
Bluetooth lets you exchange data over a short distance. Learn how to enable it on your Firefox OS device so you can easily share files with others.