Learn how to add, share and manage contacts through the import and exporting features on your Firefox OS phone.
Just press the power and home buttons at the same time. Your screenshot will be stored in the Gallery app.
Firefox OS has a feature that lets you tell websites not to track your browsing behavior. Learn what tracking is, how the feature works and how to turn it on.
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.