Recently Updated Extensions

Subscribe

Almost Black

A very plain dark theme with subtle blues

Not yet rated
21 users
Updated March 13, 2025

Eldritch

Eldritch theme
https://github.com/eldritch-theme/thunderbird

Rated 5 out of 5 stars (1)
13 users
Updated March 6, 2025

rambley

i have made my last mozilla version of this to Thunderbird! :)
PS: the support website is supporting me by likeing videos and subscribing. :) pls do that ok?

Not yet rated
3 users
Updated March 6, 2025

n(d).white.fresh

A white fresh theme by neuro(drive).pro()

Rated 5 out of 5 stars (1)
36 users
Updated March 4, 2025

n(d).dark.fresh

A dark fresh theme by neuro(drive).pro()

Rated 5 out of 5 stars (6)
92 users
Updated March 4, 2025

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

Not yet rated
41 users
Updated Feb. 17, 2025

Polish blue 1.0

Motyw by QLIN

Rated 5 out of 5 stars (1)
4 users
Updated Feb. 10, 2025

Nord Hardt

An arctic, north-bluish dark, clean and elegant color scheme for Thunderbird 128+.

Rated 5 out of 5 stars (1)
19 users
Updated Jan. 24, 2025

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.

Not yet rated
22 users
Updated Jan. 13, 2025

New Year's Eve Theme

Celebrate New Year's Eve with this festive Thunderbird theme featuring fireworks and sparkling visuals.

Not yet rated
7 users
Updated Jan. 9, 2025

Blurple

Blurple: A calming blend of blue and purple.

Start blurpmaxxing today.

Not yet rated
12 users
Updated Oct. 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)
329 users
Updated Sept. 11, 2024

twilight dark

Dark violet theme

Rated 5 out of 5 stars (1)
60 users
Updated Aug. 30, 2024

Gruvbox Dark Thunderbird

Gruvbox dark theme for Thunderbird. Originally written for Firefox. Using https://github.com/morhetz/gruvbox color palette.

Check out this theme for Firefox https://addons.mozilla.org/en-US/firefox/addon/gruvbox-dark-theme/

Rated 5 out of 5 stars (13)
1,121 users
Updated Aug. 18, 2024

Everforest

Everforest theme for Thunderbird.

Not yet rated
76 users
Updated Aug. 2, 2024

Splat Theme

Purple Pinkish Theme.

Rated 1 out of 5 stars (1)
0 users
Updated July 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
29 users
Updated May 29, 2024

Antimuonium

A personal mix between dark and light modes.

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

SimpleFox-Like

Minimal.

Not yet rated
14 users
Updated May 29, 2024

Endeavour_Purple

My Theme

Rated 5 out of 5 stars (1)
2 users
Updated May 23, 2024