Fortunately, Facebook users who prefer using the separate Facebook Messenger mobile app can enable its dark mode feature. Here's how: Launch the Messenger app and log in if necessary.

When you've had enough of someone and it's time to block them on Facebook and Messenger, you'll need to be thorough and follow these steps.

Messenger Kids was released in 2017 as a family-friendly messaging app. It provides additional safeguards and doesn't require a Facebook account.