
Go to the App Store and check if any updates for Facebook Messenger are available. If the FB Messenger app seems idle, all you need to do is to click the home button twice, view the list of apps, find Messenger and swipe up to close it. This may be also one of the reasons when the Facebook messenger is not running properly on your Android device. Make sure your device is well connected to the internet.

If you're facing a Facebook messenger is not connected issue, here are some potential solutions. While this application often runs smoothly it can occasionally become unresponsive or idle. Facebook Messenger is an instant messaging app developed by Facebook for their users to exchange messages instantly with friends.
