Tone it down a little. Dark Facebook Messenger..
If you find that facebooks messenger.com is too bright (especially at night), then this is an extension for you.
It makes everything darker and easier on your eyes.
Unofficial Messenger dark mode. Easily swap between dark and light mode.
Free! A Dark Mode theme for Facebook Messenger.
Simple dark theme for Facebook Messenger.
Scheduled Dark Mode for Facebook Messenger, now including Sunset to Sunrise controls.
Changes the color scheme of messenger.com
applies a dark console like theme to facebook messenger
A theme selector for Facebook's Messenger (messenger.com) with multiple awesome looking themes!
messenger.com darkmode
Converts the new messenger emojis to the cooler old ones
This extension sequentially unsends all messenges in a messenger chain.