Blue-Fox_by_Valdi

Purple Praline

A purple theme for Thunderbird

Game of Thrones winter Stark

Wolf House Stark. Game of Thrones, winter is coming.

You liked this theme see other themes that I did you will love. Access the link below.
Link:https://addons.mozilla.org/pt-BR/firefox/user/leandro_CE/?src=addon-detailLobo da casa Stark.Game of Thr...

Misas México Tema

Tema para thunderbird de Misas en México

Clean and Professional

Clean and polished theme for Thunderbird and Firefox.

Shy kitten

A very sweet animal.

Illidan World of Warcraft

World of Warcraft Illidan the Burning Crusade Wrath of the lick king

Tokyo Night

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

Dark + Pink

I made it with Firefox color and just added stuff to the manifest to make it valid.

Dark theme for Firefox

A dark Firefox theme for your web browser. It's simple and coherent.

irasutoya01

Thunderbird 78 以降用に使えるテーマを練習用に作ってみました。
Very simple theme, which uses only public domain illustrations.

Polski błękit

Motyw by QLIN

Polish blue 1.0

Motyw by QLIN

Shop Khởi Nghiệp Theme 1

Theme Designed by Shop Khoi Nghiep

Gelbe Blumen

ein sehr gelbes Thema für Thunderbird

Rustic Wood

Rustic Wood.

Verdurous Darker

A dark, forest theme.

Solarized light Theme ternoc

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

Phuong Nam Cons

Light theme with some gradients.
Phuong Nam Cons

Thunderbird Daily Suave

Based on the "Thunderbird Suave" theme by aramaicus.