The same point happened with me yesterday. I started to use Facebook on my Android tablet and when I believed to switch off chat for sometime, I really felt difficulty to locate such option. But after searching for longtime, I discovered the method to shut off chat in Facebook for Android.
How to Turn Off Chat In Facebook
How To Shut Off Facebook chat on Android
So, this article shares you How to Switch off chat in Facebook for Android. Just review the following actions extremely thoroughly as well as use them on your gadget:
-Open Facebook in your Android tool and log into your account.
-Now, tap on Facebook's menu switch on the top left corner of the phone and then scroll down the menu to App Settings. Tap on it. See the screenshot to help better.
-Now, under General Settings, you'll see an option called chat Availability. Uncheck this term to shut off Facebook chat in your Android phone/tablet.
That's it! Currently your Facebook chat is switched off on your smart phone. You could anytime turn it off by just checking chat Availability once again.
So, I assume the above steps are enough to assist you much better and also wish you can do it on your side easily.