App permissions give you the ability to customize and control which capabilities you give apps. You can pick and choose which permissions to grant apps at the time of use.
Turning off certain permissions may result in basic features no longer working as intended.
To turn permissions on or off for installed apps:
From a Home screen, navigate: Settings > Application manager.
Swipe left or right to access apps; steps apply to the default Home mode.
Tap the appropriate app.
If available, tap Permissions.
Tap any of the available permissions (e.g., Camera, Contacts, Location, etc.) to turn on or off .
If turning off a permission, from the "If you deny this permission..." prompt, select Cancel or Deny Anyway.
The image below is an example.
For additional details on app permissions tap the Menu icon (upper-right) then tap All permissions.