Recently Updated Extensions

Subscribe

Hatsune Miku (Chrome replica) 4K+

Hatsune Miku, a character featured in vocal synthesis software developed by Crypton Future Media, is one of Japan's most popular manga idols.

Not yet rated
0 users
Updated July 1, 2025

Sky Tower

A tower in the dark blue sky, with a hint of clouds and dragons.

Not yet rated
1 user
Updated July 1, 2025

Cobalt2

A faithful port of the original Cobalt2 theme by Wes Bos.

Rated 5 out of 5 stars (3)
127 users
Updated June 10, 2025

SSC Napoli by Rivetti

SSC Napoli by Rivetti.

Not yet rated
6 users
Updated May 28, 2025

Dark Night Arcturus X

Quite dark theme, based on shades of grey colors with blue and orange elements. Also try my new theme - Dark Shadows XT.

Rated 5 out of 5 stars (29)
1,683 users
Updated May 22, 2025

Dark Shadows XT

Quite dark theme, based on shades of grey colors, with blue and green accents.

Rated 5 out of 5 stars (11)
170 users
Updated May 22, 2025

Vioorange Warm

Warm, cozy, bright theme in violet and orange, ideal for winter or autumn.
Screenshots: https://imgur.com/NdKQA43 | https://imgur.com/uXtZpPw

Not yet rated
17 users
Updated May 14, 2025

Classic BB Colors

Calm and simple, bright theme in classic blue and beige colors.
Screenshots: https://imgur.com/AWjqqfe | https://imgur.com/75u8TvJ

Not yet rated
113 users
Updated May 14, 2025

Pistachio Ocean

Light and fresh, calming theme in pistachio and bright blue colors - not only for medics.
Screenshots: https://imgur.com/0hNFPjY | https://imgur.com/0Rma4Mn

Not yet rated
43 users
Updated May 14, 2025

Irish Coffee

Elegant and mellow theme for true gentlemen in different shades of brown.
Screenshots: https://imgur.com/UdyJoLr | https://imgur.com/wvkTQuN

Rated 4 out of 5 stars (1)
33 users
Updated May 14, 2025

Retro Cyborg

A distinctive theme referring to retro arcade games in turquoise and blueviolet.
Screenshots: https://imgur.com/mGno8eL | https://imgur.com/i5brkRR

Not yet rated
26 users
Updated May 14, 2025

Greeny Lemon

A refreshing theme with a delicate citrus flavor in yellow and green.
Screenshots: https://imgur.com/QKe1FZQ | https://imgur.com/aBVVKtX

Not yet rated
9 users
Updated May 14, 2025

Autumn Blush

A warm theme of a wood changing its colors, in red, orange and khaki.
Screenshots: https://imgur.com/J8X8nNp | https://imgur.com/u1PnUqU

Not yet rated
12 users
Updated May 14, 2025

Raspberry Garden

Sweet nad fruity theme in crimson and green, not only for summer.
Screenshots: https://imgur.com/o7D4ft7 | https://imgur.com/WkeDhNE

Rated 5 out of 5 stars (1)
17 users
Updated May 12, 2025

Cloudy Sky

A calm theme in different shades of blue for those with their heads in the clouds.
Screenshots: https://imgur.com/cJqEzhf | https://imgur.com/tbuqgGi

Rated 5 out of 5 stars (3)
71 users
Updated May 12, 2025

Italian Army Theme

A Thunderbird theme inspired by the Italian Army.

Not yet rated
3 users
Updated May 3, 2025

Modern Theme

Seemless experience for Firefox & Thunderbird!

The Modern Theme aims for a lightweighted and eye-friendly design. Based on Dark Mode, it uses a contrasty combination of a unique blue-green-turquoise blend combined with sunset orange.

Rated 5 out of 5 stars (4)
256 users
Updated April 20, 2025

One Dark

One Dark theme for Thunderbird.

Rated 5 out of 5 stars (2)
189 users
Updated April 20, 2025

Material SubBlack Theme

Material Filled Subblack Theme

Not yet rated
30 users
Updated March 24, 2025

Full White Classic

Full White Classic uses Thunderbird Light colors instead of OS colors.

Not yet rated
34 users
Updated March 13, 2025