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Earlybird

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

Rated 5 out of 5 stars (1)
8 users
Added Aug. 26, 2019

Thunderbird-60

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

Not yet rated
19 users
Added Aug. 26, 2019

yahane_pattern

yahane_pattern, BY: HEKISU1

Not yet rated
1 user
Added Aug. 23, 2019

Universe Nebula

Rated 4 out of 5 stars (14)
9 users
Added June 1, 2018

EMBL-EBI Theme

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

Rated 5 out of 5 stars (16)
9 users
Added April 7, 2018

Nightly Brandrav

Rated 5 out of 5 stars (6)
1 user
Added March 12, 2018

FirePlanet

Rated 5 out of 5 stars (26)
3 users
Added Nov. 29, 2017

Quantum

Firefox Quantum

Rated 5 out of 5 stars (351)
113 users
Added Nov. 21, 2017

FFX Developer

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

Rated 5 out of 5 stars (11)
4 users
Added Oct. 8, 2017

Tiger Tabby Cat

Rated 5 out of 5 stars (13)
10 users
Added Aug. 31, 2016

Blue-Fox_by_Valdi

Not yet rated
1 user
Added Aug. 28, 2016

forse

Rated 5 out of 5 stars (9)
0 users
Added June 10, 2016

The Best 123

asafs

Not yet rated
2 users
Added May 4, 2016

Dark Gray to Match Mobile

Rated 5 out of 5 stars (15)
6 users
Added April 30, 2016

Overwatch

Rated 5 out of 5 stars (7)
1 user
Added Jan. 27, 2016

FoxAndBirdInTheLava

Rated 5 out of 5 stars (2)
8 users
Added Jan. 16, 2016

Flat and Grey

Just a #EEEEEE theme with a flat Firefox logo.

Rated 5 out of 5 stars (14)
3 users
Added Oct. 15, 2015

Blue & Gold Glitter

Rated 5 out of 5 stars (7)
2 users
Added Oct. 13, 2015

Anime girl shooting stars

Rated 5 out of 5 stars (8)
1 user
Added Sept. 22, 2015

Deadpool Emblem

Deadpool.

You need nothing else.

Rated 5 out of 5 stars (2)
3 users
Added Aug. 10, 2015