Rated 4 out of 5 stars
This add-on has been having problems with displaying certain of the FF status bar icons since FF Aurora 16 (I think).
This is a one-of-a-kind extension that has long been abandoned and I wish that someone would pick up the code and start supporting it again. I am a big status bar person and I rely heavily on this extension to make sure that my status bar icons and buttons behave themselves. Somebody get a hold of this Y5 character and get him to give it up!