Sujet : How to Log out of Facebook Messenger?

If you want to Log out of Facebook messenger, then you have to go to the menu section of Facebook application and look for the settings and privacy option. Then, look for "where you have logged in" and find the device on which you have logged in Facebook messenger.
Then go to the device and click on log out option.

Here is the recommended article, if you want the detailed information.
https://worldzo.net/log-out-of-facebook … id-iphone/