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Change the Default Language
This article describes how to change the language on Firefox OS.
Installing apps
The Firefox Marketplace has apps designed for your Firefox OS device. We'll show you how to find and install them.
How do I enable the Firefox OS phone lock?
Firefox OS phones have a feature that locks the phone automatically when idle. Learn how to turn it on.
How to take a screenshot on Firefox OS
Just press the power and home buttons at the same time. Your screenshot will be stored in the Gallery app.
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