How To Log Out Of Facebook Messenger
Well, it's not possible to sign out from within the Messenger however there is a simple workaround to do so if you're using an Android device. iPhone, iPad and WP users can likewise logout without uninstalling the app however that requires utilizing Facebook's web user interface, either from your mobile browser or desktop. Though, this isn't really an easy to use way but will do the needed task.
Logout from Messenger on Android
Go to phone Settings > Applications and open the Messenger app. Click the 'Clear data' option and now open Messenger. You'll now able to log into Messenger utilizing a different Facebook account. Keep in mind: If you've Facebook app installed and you're singed into it then Messenger will still show your formerly linked account that can be set up right now.
To sign in utilizing a various ID, just click the 'Switch Account' choice. In case you wish to unlink your earlier account from Messenger, simply logout from Facebook app.
Keep in mind: Clearing information will get rid of the app settings and all your messenger information (stored locally) such as images. Nevertheless, the messages and photos will be synced again with your account. Follow the below alternate treatment instead, if you don't want the information to be rubbed out.
Logout from Facebook App/ Messenger App on iOS, Android, Windows Phone and Desktop (Recommended Technique).
This is a very helpful way to from another location logout from Facebook from any or all the devices to which your Facebook account is related to. It comes real convenient in case you loose access to a particular device and desire to prevent unauthorised access to your account. The advantage of this workaround is that it does not clean your regional Messenger data and works with all major mobile OS like iOS (iPhone, iPad, iPod touch), Android and Windows Phone.
To do so, log into your Facebook account from your desktop browser or use Chrome web browser to log into facebook.com on your mobile phone and go with desktop version of the website. In Facebook, navigate to Settings > Security and click "Where You're Visited" alternative.
Here you can see all your Facebook active sessions together with details like Gadget type. Select the Messenger one and click on "End activity". Now open Messenger on your phone and it'll automatically log off (await a brief while and make sure you're linked to Internet.).
Dear Facebook, please do not frustrate users by pulling off standard functionality. Take that! And one more thing please don’t forget to share this awesome trick to use the How To Log Out Of Facebook Messenger with your friends.