Add-ons
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Dark Shadows XT
Quite dark theme, based on shades of grey colors, with blue and green accents.
Modern Theme
Seemless experience for Firefox & Thunderbird!
The Modern Theme aims for a lightweighted and eye-friendly design. Based on Dark Mode, it uses a contrasty combination of a unique blue-green-turquoise blend combined with sunset orange.
Modern Theme Green
Modern Theme Green thats easy for the eyes and ported from Firefox for a seemless web experience.
New Year's Eve Theme
Celebrate New Year's Eve with this festive Thunderbird theme featuring fireworks and sparkling visuals.
Classic BB Colors
Calm and simple, bright theme in classic blue and beige colors.
MintGreen Dark Soft
This theme matches well with LinuxMint and Cinnamon Theme.
Use an add-on like Darko to darken the message body.
Originally written for Firefox.
Thanks to calvinchd at calch.themes.thunderbird.net for original Gruvbox Dark.
Tested up to v128.
Nord Hardt
An arctic, north-bluish dark, clean and elegant color scheme for Thunderbird 128+.
Pistachio Ocean
Light and fresh, calming theme in pistachio and bright blue colors - not only for medics.
Irish Coffee
Elegant and mellow theme for true gentlemen in different shades of brown.
Retro Cyborg
A distinctive theme referring to retro arcade games in turquoise and blueviolet.
Greeny Lemon
A refreshing theme with a delicate citrus flavor in yellow and green.
Muted Sage Gruvbox Light
Muted Sage Gruvbox light theme for Thunderbird.
Forked from Merlin's Muted Sage Gruvbox Dark theme, forked from calvinchd's gruvbox dark theme.
Uses Morhetz's Gruvbox colour scheme https://github.com/morhetz/gruvbox?tab=readme-ov-file
To create your own collections, you must have a Mozilla Add-ons account.
