Hello! As we all know Facebook has that seen option on messages and it shows seen when a message is read. So I just sent a message to someone and after sometime it showed 'seen' which obviously meant he had read the message. An hour later, I see the same message and that 'seen' is gone now. How is this possible?
Facebook Seen and Unseen Messages
Hi,
You have just sent a message to someone in Facebook which is shown as “seen” in the chat that means, he had read your message and an hour later, your “seen” message which you have sent has not showing in the message. This is because he had installed a “Google Chrome” extension on it. Please follow these few steps to know how to do it:
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Firstly, go to the “Google” and search for “Facebook Unseen” chrome extension.
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Then download it.
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After downloading, you can install it in the “Google Chrome”.
Hope this answer will help you a lot.
