A while back, Facebook introduced an independant web interface for its messaging service. For anyone who uses Facebook as a messaging platform but is often distracted by the news feed that’s constantly updating, the Messenger interface was very welcome. It allows you to exclusively send and receive messages, get a desktop notification for a new message, and mute alerts from a contact if you want. You can also start and follow group conversations. Facebook Messenger – Dark Theme is a Chrome extension that adds a dark theme to Facebook Messenger to help ease conversations that you might have at night, or in low light. You can easily toggle between the dark theme and the default white theme with a button embedded in Messenger’s interface.
Install Facebook Messenger – Dark Theme and go to Messenger. Select a contact and at the top right (next to the Information button) you will see a new ‘Dark’ button. Click it to switch to the dark theme.
Here’s what it will look like;