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Cobalt2

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

Rated 5 out of 5 stars (1)
99 users
Updated July 10, 2024

Dark Night Arcturus X

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

Rated 5 out of 5 stars (26)
1,855 users
Updated July 9, 2024

Modern Theme Green

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

Not yet rated
6 users
Updated July 1, 2024

Dark Shadows XT

Dark Shadows XT theme for Thunderbird by Nyquisteroux. Quite dark theme, based on shades of grey colors and optimized for enlarged Thunderbird interface - to see best results, set Density: Relaxed and Font Size: 15px in Thunderbird Options.

Rated 4 out of 5 stars (3)
35 users
Updated July 1, 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 4 out of 5 stars (1)
30 users
Updated June 21, 2024

Cat Collage

My cat Beeper can now delightfully viewed on Thunderbird.

Version 1.4 enhances the readability of text against my beautiful cat.

Not yet rated
20 users
Updated May 29, 2024

Antimuonium

A personal mix between dark and light modes.

Rated 5 out of 5 stars (3)
64 users
Updated May 29, 2024

SimpleFox-Like

Minimal.

Not yet rated
13 users
Updated May 29, 2024

Endeavour_Purple

My Theme

Not yet rated
10 users
Updated May 23, 2024

Arc Theme for Thunderbird

Another Thunderbird theme inspired by the Arc theme.

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

3DTriangles

A Mozilla Thunderbird theme with 3D Objets and transparent design

Not yet rated
2 users
Updated May 1, 2024

Real System Theme

Theme that really follows system colors for Thunderbird 115+.

If you get strange colors instead of what you expect: First switch to the built in system theme, then switch to this theme again.

Rated 4 out of 5 stars (4)
110 users
Updated April 24, 2024

Goupilmtos-2024

thèmes Goupilmt OS 2024 for thunderbird.

Rated 5 out of 5 stars (1)
34 users
Updated March 27, 2024

Dark Space Thème 9MKR

Dark Space Thème 9MKR est un thème de couleur sombre avec une image de l'espace.

Not yet rated
13 users
Updated March 27, 2024

Mail Delivery 4K (2023)

Mail Delivery 4K (2023) theme for Thunderbird 100+ and 4K monitors.

Not yet rated
49 users
Updated March 27, 2024

Mail Delivery 4K (2018)

Mail Delivery 4K (2018) theme for Thunderbird 100+ and 4K monitors.

Not yet rated
11 users
Updated March 27, 2024

Mail Delivery 4K (Red)

Mail Delivery 4K (Red) theme for Thunderbird 100+ and 4K monitors.

Not yet rated
32 users
Updated March 27, 2024

Mail Delivery 4K (Grey)

Mail Delivery 4K (Grey) theme for Thunderbird 100+ and 4K monitors.

Rated 5 out of 5 stars (1)
25 users
Updated March 27, 2024

Mail Delivery 4K (2009 Alt)

Mail Delivery 4K (2009 Alt) theme for Thunderbird 100+ and 4K monitors.

Not yet rated
10 users
Updated March 27, 2024

Mail Delivery 4K (2009)

Mail Delivery 4K (2009) theme for Thunderbird 100+ and 4K monitors.

Not yet rated
2 users
Updated March 27, 2024