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Best SleepyHead Alternatives
Here are some Firefox add-ons that are similar to SleepyHead:
Simple
Arena18
10 0.00 
(0) 
Simple-Brown
Firefox user 6968530
- 0.00 (0) 
Simplicity24
JaydenDev
- 0.00 (0) 
Nightly Simple
luna
1 5.00 (2) 
Goodnight Firefox Theme
Charlie Henson
- 0.00 (0) 
Simple Best
Theme Makers
- 0.00 (0) 
Deep black
DeathbyGeko
1 0.00 (0) 
Dark_01
malayfromindia
- 0.00 (0) 
Calm waves
squirtle
- 0.00 (0) 
BrightenLight
wacky
- 0.00 (0) 
Easy Theme
Enrico Luigi Mereu
- 0.00 (0) 
Flat Firefox
Sheldon
1 4.54 (13)