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Dark Shadows XT

Quite dark theme, based on shades of grey colors, with blue and green accents.

Rated 5 out of 5 stars (6)
107 users
Updated Nov. 18, 2024

Dark Night Arcturus X

Quite dark theme, based on shades of grey colors with blue and orange elements.
If you like this, also try my new theme - Dark Shadows XT.

Rated 5 out of 5 stars (27)
1,769 users
Updated Nov. 18, 2024

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.

Rated 5 out of 5 stars (4)
66 users
Updated Sept. 23, 2024

Modern Theme Green

Modern Theme Green thats easy for the eyes and ported from Firefox for a seemless web experience.

Rated 5 out of 5 stars (1)
188 users
Updated Sept. 11, 2024

Cobalt2

A faithful port of the original Cobalt2 theme by Wes Bos.

Rated 5 out of 5 stars (2)
123 users
Updated Aug. 18, 2024

Splat Theme

Purple Pinkish Theme.

Rated 1 out of 5 stars (1)
1 user
Updated July 21, 2024

Endeavour_Purple

My Theme

Not yet rated
4 users
Updated May 23, 2024

3DTriangles

A Mozilla Thunderbird theme with 3D Objets and transparent design

Rated 3 out of 5 stars (1)
2 users
Updated May 1, 2024

Goupilmtos-2024

thèmes Goupilmt OS 2024 for thunderbird.

Rated 5 out of 5 stars (2)
48 users
Updated March 27, 2024

Abstract Theme Carole Pepper

An abstract Firefox theme of the charactor Carole Pepper of Honkai Impact 3rd. Inspired by the color of the character's default skin, including the character's skin tone and clothing color. The copyright owner of the charactor Carole is Mihoyo.

Rated 5 out of 5 stars (1)
42 users
Updated Oct. 16, 2023

Dark Wood Bird

Un thème bois sombre avec logo Thunderbird

Rated 5 out of 5 stars (1)
86 users
Updated Sept. 18, 2023

Dark electric violet

Dark and violet theme for Thunderbird by Stonymontana

Not yet rated
68 users
Updated Sept. 18, 2023

Valorant Red

A Thunderbird theme version with custom 'Valorant'-red CSS

Rated 2 out of 5 stars (1)
28 users
Updated Aug. 18, 2023

ULTRAWIDE ANIMATED MATRIX

Extended Version for Ultrawide Monitors

Not yet rated
8 users
Updated Aug. 1, 2023

Dark15_Th

Dark Theme CR style Win11 for New Thunderbird 15.

Rated 2 out of 5 stars (1)
13 users
Updated Aug. 1, 2023

Rose Pine Dawn

A theme based on the Rose Pine Dawn color scheme (https://rosepinetheme.com/)

Not yet rated
56 users
Updated Aug. 1, 2023

Muted Sage Gruvbox Dark

Muted Sage Gruvbox dark theme for Thunderbird.
Forked from calvinchd's gruvbox dark theme.

Not yet rated
120 users
Updated May 15, 2023

Alpenglow

The legendary 'Firefox Alpenglow' theme now available for Thunderbird.

Rated 5 out of 5 stars (7)
121 users
Updated Dec. 16, 2022

Solarized light Theme ternoc

Solarized theme created by ternoc, based on Ethan Schoonover palette.

Not yet rated
156 users
Updated Nov. 28, 2022

Tokyo Night

A nice dark theme for Thunderbird based on Enkia's Tokyo Night theme for VIsual Studio Code.

Rated 5 out of 5 stars (1)
190 users
Updated July 12, 2022