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Best Universal Alternatives
Here are some Firefox add-ons that are similar to Universal:
Universal Luminosity
TamCocar
- 5.00 
(1) 
Dark Universe
MaBaTa
- 0.00 (0) 
Universe sun set
redmicro1
- 0.00 (0) 
Abstract Sunrise In Space
Cheddo
1 4.25 (4) 
SCIFI Theme
Firefox user 13123753
- 0.00 (0) 
Cosmic Universe
anthuansousa
37 3.00 (1) 
Sunrise on Earth
1sd32fd
1 0.00 (0) 
cosmic sunset
olDBones
1 0.00 (0) 
Another Day in Space
rix-wn
24 5.00 (3) 
Flashing Sunrise
zolon6
- 0.00 (0) 
The Universe mini
CactusTeam
- 5.00 (1)