TransperentFox

A transparent skin for Firefox and Thunderbird. This skin is intended to be used on Linux systems, with a compositor configured to blur the background. To achieve this on KDE Plasma, I use the following: https://github.com/xarblu/kwin-effects-better-blur-dx

Screenshots

How To Install

Firefox

1. Go to about:config and enable toolkit.legacyUserProfileCustomizations.stylesheets
2. Go to ~/.mozilla/Firefox/Profiles/[Random String]/chrome

• You may need to create the chrome folder
• If you installed Firefox via snap of flatpak, the .mozilla folder may be located elsewhere

3. Put this userChrome.css file in the chrome folder
4. Restart Firefox

Thunderbird

1. Go to settings, scroll all the way to the bottom, and click "Config Editor"
2. Enable toolkit.legacyUserProfileCustomizations.stylesheets
3. Go to ~/.thunderbird/Profiles/[Random String]/chrome

• You may need to create the chrome folder
• If you installed Firefox via snap of flatpak, the .mozilla folder may be located elsewhere

4. Put this userChrome.css file in the chrome folder
5. Restart Firefox

Configuring Kwin

If you are using kwin-effects-forceblur, enable force blur and add the following to your applications list:

firefox
thunderbird-bin

You may adjust the blur intensity to your liking.