Endeavour_Purple

My Theme

Nord Hardt

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

Muted Sage Gruvbox Dark

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

Black Abstract Fox

abstract nine

3DTriangles

A Mozilla Thunderbird theme with 3D Objets and transparent design

Abstract Space Blue

Space
Espaço Sideral
Galaxy
Galaxia

Sparkle Stuff by MaDonna

Theme Designed by MaD♥nna

Liquid Gold WebExtension theme

Liquid Gold Theme for Thunderbird. I made it just for my own use. Hope you like it too..

Valorant Red

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

Splat Theme

Purple Pinkish Theme.

Windows 10 Style

Owner Gold

This Add-on is a simple theme.
Which is a set header on thunderbird or firfox also.
Header image is based on galaxy image as show on header.

Game Red Highlighted

A thorough red/dark gaming theme, no distractions, strong red details and a red indicated current tab to never be confused and always remain focused.

Verdurous Darker

A dark, forest theme.

HEKISU1

HEKISU1, BY: HEKISU1, Thamyris, Thamyris71.

Clean and Professional

Clean and polished theme for Thunderbird and Firefox.

Solarized light Theme ternoc

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

Rose Pine Dawn

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

ULTRAWIDE ANIMATED MATRIX

Extended Version for Ultrawide Monitors