In the following tutorial, check out how to delete messages sent on Facebook from your computer. The procedure goes for text messages, photos, videos, audio, links and files.
Step 1. On Facebook, open the conversation and click the "…" button to the left of the message you want to delete. Then click on "Remove";
Step 2. Select the "Remove for All" option and click "Remove";
Step 3. The message will be deleted immediately without any further confirmation. As with WhatsApp, your friend knows that the content has been deleted.
Ready! Take advantage of the tips to remove messages sent by mistake on Facebook.