Solution Of Unwanted 24 Hours Online In Facebook Chat

Hello friend! For a few days, Facebook users are having a common problem. That is, they are being showed online 24 hours in Facebook.  Many of their Facebook friends knock them in chat as they see him/her online. But they do not get the answer as he/she is not online actually. There are solutions to that problem.

There are 3 solutions actually. But most of the people will need the 1st one.
SOLUTION 1:
Most people use Facebook on mobile. When you browse Facebook from mobile, you keep your chat open.
See the below screenshot:

The solution is very easy. Just Turn Off Chat by clicking the above showed link and the problem is over!
After turning off chat, the Chat tab of Facebook Mobile will be like this: