BlackBerry 10 includes a number of features designed to make your phone more responsive and to keep you in the loop as to what's happening. However, too many notifications and alerts can quickly turn into a nuisance. BlackBerry's notification area, known as the BlackBerry Hub, includes controls that enable you to determine which apps and accounts appear.
Slide your finger from the bottom of the screen to the right to open the BlackBerry Hub. Here you'll find all of your BlackBerry notifications. If you slide your finger only a bit to the right instead of all the way, you'll open the Hub quick-peek functionality but won't have access to the Options menu.
Tap the icon with three small dots to see the Hub's settings menu. Select "Settings" and then touch "Hub Management." The Hub Management area of your BlackBerry's operating system gives you direct control over your device's notification settings.
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Enable or disable individual BlackBerry applications by touching the "On/Off" slider in their Hub entry. For example, to disable Facebook notifications, set the slider next to "Facebook" to "Off."
Tap the "Back" button to save your changes and exit the Hub's settings menu. Only the entries you set to "On" will continue to deliver notifications to your BlackBerry Hub. Return to the Hub's menu to re-enable app notifications as needed.