This article explains how to clear the browsing history, the cookies and stored data on the Firefox Browser on Firefox OS.
This article covers making calls, adding new numbers to your contacts and accessing your voicemail on Firefox OS.
Hotmail and Outlook are set to sync emails from a certain time period. To see all of your email, you'll need to change the account setting to sync all messages.
This article covers the basic features of Firefox OS - apps, messaging, contacts, music and more. It also links to articles that you'll want to explore later.