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Best MainStream Alternatives
Here are some Firefox add-ons that are similar to MainStream:
Scale blue 2
marcdrs
- 0.00 
(0) 
Smooth Lines
Grafix
- 0.00 (0) 
Lite Shades Of Blue
mandolin96
- 0.00 (0) 
bluestream
squeaker757
1 0.00 (0) 
cool shade of blue
Christopher So
- 0.00 (0) 
Blue Box
Egneva Designs
- 0.00 (0) 
Smooth Soothing Blue
Firefox user 13955092
- 0.00 (0) 
shades of blue and green
DeniseART
- 0.00 (0) 
Brushed Blue Green
devilmoth
- 0.00 (0) 
Smooth Blue Wave
tomster1996
- 0.00 (0) 
Deep Sea & Sky Blue
Sar
3 4.50 (2) 
Solid Medium Blue Theme
Sunny
1 0.00 (0)