OK + Feature suggest. Rated 5 out of 5 stars

Fully working in my XP with FF 21.0.
A• An option to change the background list.
B• An option to change the font color.
C• An option to change and/or disable the font shadow. (Realy i have to force my eyes to read)
D• A second animation targeting design (to let the user chose one or other) a little bit more smoothly. (I happened an animation's half size, circles with more thickness, changeable color, changeable animation time, and an option to play it twice)
E• I tried "Findbar Favorites" (here in AMO), and your add-on align to the most right of the findbar the words that Findbar Favorites add-on add to the findbar. Could you make it "compatible"? Is very interesting and usefull that add-on too.

Nothing more. Forgive my bad english, and keep doing good stuff. Thanks for the space.

This review is for a previous version of the add-on (3.4.1-signed).