Messenger Black is a Chrome add-on developed by Ryan Mohta that brings a dramatic new look to Facebook Messenger with its dark mode feature. With a simple flip of a switch, the background dims, making your messages more vivid and easy on the eyes.

One of the standout features of Messenger Black is its ability to schedule dark mode. You can set a start and stop time for when you want Messenger Black to run, allowing you to align it with your personal schedule or even your home automation system. Additionally, the add-on offers a Sunset to Sunrise mode, which automatically turns on dark mode at sunset and off at sunrise, matching your circadian rhythm and the surrounding environment.

All these features can be easily enabled or disabled from a convenient control panel in the Chrome toolbar.

It's worth noting that the Sunset to Sunrise mode in Messenger Black uses your approximate location once per day to determine the sunset and sunrise times in your specific area. This location data is only used temporarily and deleted immediately after use, ensuring your privacy.

If you encounter any issues with Messenger Black or would like to provide feedback or suggestions, you can contact the developer at They typically respond within one or two days.