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Best SummerGNU Alternatives
Here are some Firefox add-ons that are similar to SummerGNU:
Galactic GNU Addiction
LexHero
- 0.00 
(0) 
Gnome Colors
nisby44
4 5.00 (1) 
Dark GNU
ZefQ.Nm3
- 5.00 (1) 
Fedora colors
Vulta
1 0.00 (0) 
Gentoo (Dark Edit By TechnoByte)
TechnoByte
- 0.00 (0) 
gnu
lids
- 4.50 (2) 
gradient_rainbow
smithll14
- 0.00 (0) 
Linux Reflections purple
evilsteve
- 0.00 (0) 
GNU/FSF Theme
User^4m3
- 5.00 (1) 
Debian GNU/LINUX colors
Vulta
1 0.00 (0) 
Dark GNU Minimal
ZefQ.Nm3
- 0.00 (0) 
Linux Reflections gray
evilsteve
1 0.00 (0)