🕶️ Cool dark red Facebook Messenger theme

Installation

Using the browser plugin Stylus

1. Get the Stylus plugin:
   • For Firefox
   • For Chrome
2. Click here to install the theme using Stylus.
3. Click Install style and go to https://www.messenger.com or https://facebook.com/messages to view the result️️

Alternative manual installation

1. Get the Stylus plugin:
   • For Firefox
   • For Chrome
2. Click the Stylus plugin image → Manage → Write new style
3. Enter a name for the style. E.g: Dark Facebook Messenger Theme
4. Copy this CSS into the textarea
5. Click Save and go to https://www.messenger.com or https://facebook.com/messages to view the result️️

Change favicons using Greasemonkey (Optional) (currently only for Firefox)

If you want to change the favicons of the websites as well as the css-style:

1. Get the Greasemonkey plugin
2. Click the Greasemonkey plugin image → New user script…
3. Copy this JavaScript code into the textarea
4. Click the save icon or press Control + S and go to https://www.messenger.com or https://facebook.com/messages to view the result️️