Betterbird UserChrome

This repository contains a custom UserChrome script for Betterbird, a fork of Mozilla Thunderbird.

• Combines the tab bar and toolbar into a single line for a cleaner look.
• Removes shadows and border-radius effects for a flat, minimalistic UI.
• Default theme background is /chrome/image/ff-1.png, which can be replaced with your own.
• You can modify CSS properties in the /chrome/css/config.css file.

Installation

1. Copy the chrome folder from this repository into your Betterbird profile directory.
2. Enable UserChrome.css in Betterbird by following the usual steps for enabling custom themes in Thunderbird.
3. Restart Betterbird to ensure that the changes take effect.

Steps to Enable UserChrome in Betterbird

1. Open Betterbird: Launch your Betterbird application.

2. Access Configuration Editor:

   • Click on the menu button (three horizontal lines) in the upper-right corner of the Betterbird window.
   • Select "Settings" from the dropdown menu.

3. Open the about:config Page:

   • In the Settings window, enter about:config in the search box.
   • Click on the "Config Editor" button that appears.

4. Proceed with Warning:

   • You might see a warning message saying "This might void your warranty!" Click "Accept the Risk and Continue" to proceed.

5. Search for the Setting:

   • In the about:config page, use the search box to find toolkit.legacyUserProfileCustomizations.stylesheets.

6. Modify the Setting:

   • Double-click on the toolkit.legacyUserProfileCustomizations.stylesheets preference to change its value from false to true.

7. Close and Restart:

   • Close the about:config tab and restart Betterbird to apply the changes.

Note

This UserChrome script is only compatible with Betterbird 115 and is not yet complete; many elements are still unmodified. Contributions and feedback are welcome to help improve this theme.