For any of you's who have been frustrated with no sounds for notifications on Facebook, and to those who despises them! There is now a fix for both worlds..Yes Facebook finally fixed their facebook notification sounds on iPhone. This post is for the people who enjoy getting facebook notifications, like me! -Go to the facebook app on phone -Go to Account Settings -Go to Notifications -Go to Mobile Push -Look at the top of the screen, go to where it says "Sound for push notifications" -Edit it to ON for all notifications Enjoy guys. And for those who dont want sound than dont edit this and leave at default!!