you might delete individual chat messages and entire conversations to help clean up your inbox.
The following instructions show you how to delete messages on Facebook.com.
Select theMessengerbutton in the top right corner.
SelectSee All in Messengerat the bottom of the Messenger window.
Then hover your cursor over the message you want to delete.
Select thethree vertical dots(More) followed byRemove.
SelectRemovefrom the popup box to confirm.
Note
The message only disappears from your account.
Anyone else in the chat can still see the message.
SelectDelete Chatfrom the dropdown list.
Tip
Alternatively, selectArchive Chatto remove it from your chats in the left column.
SelectDelete Chatfrom the popup box to confirm.
They apply to both versions of the app, but screenshots are from the iOS app.
TapRemoveat the bottom of the screen.
Any message you remove only disappears from your own Messenger account.
(They’re still be visible to others involved in the chat.)
To delete an entire conversation using Messenger for iOS,swipe leftona conversation,tapMore, then tapDelete.
Want to delete conversations in bulk?
However, you may be able to get around this limitation with a third-party Chrome extension calledFast Delete Messages.
FAQ
First, you need todeactivate your Facebook account.
On iPhone, launch the menu, scroll to the bottom, and chooseLog Out.
Find your equipment and select thethree vertical dots, then selectLog Out.
From the Messenger.com website, selectyour photo>Preferences>Account controls>Blocking>Block Messages>Unblock.
It doesn’t work on group chats, and you gotta opt-in to it.