https://www.androidauthority.com/facebook-messenger-facebook-app-975785/
Messenger might move back to the Facebook app, where it belongs
Apr 12, 2019 - According to some code examinations, some functions of Facebook Messenger might move back to the Facebook app where they belong.
back to thefacebook appmessengermightmove
https://osxdaily.com/2015/02/16/turn-off-facebook-sound-effects-ios/
Turn Off the FaceBook App Sound Effects on iPhone
Feb 18, 2017 - Turn Off the FaceBook App Sound Effects on iPhone
the facebook appturn offsound effectsiphone
https://www.distractify.com/p/why-does-my-facebook-app-keep-closing
Why the Facebook App Keeps Closing Unexpectedly
Apr 27, 2026 - There are a few reasons why the Facebook app might be closing for you unexpectedly and repeatedly, and a few ways to fix it.
the facebook appkeepsclosingunexpectedly