Nord Theme

An adaptation of the Nord Theme for Thunderbird.

Tristana Theme (League of Legends)

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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.

Arc Inspired

A Thunderbird theme inspired by the Arc theme.

Purple Praline

A purple theme for Thunderbird

Breeze (Plasma 5) Arch Linux

Breeze (Plasma 5) + logo of Arch Linux

The Hunting of the Snark 2

Chocolate brown colored theme with a detail from an Illustration by Henry Holiday to Lewis Carroll's "The Hunting of the Snark"

Shop Khởi Nghiệp Theme 1

Theme Designed by Shop Khoi Nghiep

Thunderglobe

A Thunderbird version of the popular Fireglobe theme for Firefox.

Kde Breeze Light

Breeze Light Theme for Thunderbird

Earlybird

A nice bright theme to use with Thunderbird beta versions (Earlybird)

Thunderbird-60

An updated version with a Thunderbird 60 logo. Not sure what ESR68 is going to look l ike :)

yahane_pattern

yahane_pattern, BY: HEKISU1

Universe Nebula

EMBL-EBI Theme

A simple theme to give your computer the EMBL-EBI look.

Nightly Brandrav

FirePlanet

Quantum

Firefox Quantum

FFX Developer

Theme based on New Firefox logo family - Firefox Developer Edition Theme.

Tiger Tabby Cat