|User since||Jan. 12, 2013|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Works fine with FF18 !!! Rated 5 out of 5 stars
Warm thanks, Dafmat71 !
I simply downloaded then dragged and dropped your .jar file into the Addons/appearance folder of FF, valid install, restart.
Happy new year :)