Recently Updated Extensions
Numix background with some blue accents, optimized for use with dark OS themes
Breeze (Plasma 5) + logo of Arch Linux
SSC Napoli by Rivetti.
Chocolate brown colored theme with a detail from an Illustration by Henry Holiday to Lewis Carroll's "The Hunting of the Snark"
A Thunderbird version of the popular Fireglobe theme for Firefox.
Simple red theme with DDO logo
A white fresh theme by neuro(drive).pro()
A dark fresh theme by neuro(drive).pro()
Borussia Dortmund update thunderbird 78 - congrats TheM2K
Dark theme with blue accents.
A dark blue theme that compliments niivu's ARC X Windows 10 Theme from deviantart.
ein sehr gelbes Thema für Thunderbird
Theme Designed by Shop Khoi Nghiep
Gruvbox dark theme for Thunderbird. Originally written for Firefox. https://github.com/morhetz/gruvbox
A thorough theme, deep blue and nice grey, reminds of older chrome and Firefox look, easy on the eyes. This is a beautiful, nice theme, also available for Firefox.
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.
Image de pierres sur fond vert avec écritures vertes
Simple theme based on Kde Breeze Light theme, with solarized colors.
Liquid Gold Theme for Thunderbird. I made it just for my own use. Hope you like it too..
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.