You can delete Facebook messages using the Facebook Messenger smartphone app, or the Facebook website.

I walk through how I delete a Facebook Messenger account right from my phone. To delete Messenger, you also have to delete your full Facebook account, since they’re connected. I explain the whole ...

These instructions apply to the Messenger app on your mobile device. Now, even if you open Messenger to read or send messages, it won't show that you're online. This is a great way to discourage your ...

There are two ways to clear Messenger's cache, depending on whether you're using an Android, or an iPhone or iPad.