Rated 4 out of 5 stars

Good idea. I like addon bar feature. But there is some bug with it. It always shows same rankings for every site. Correct values are coming only when clicking on WR icon, then context menu opens and then selecting needed ranking and hovering to it's icon and then little pop-up window is only place which shows actual rankings. Using FF 7.0.1

Edit: So typical, after complaining and after more several restarts, it started working as it should.
BTW thanks for rapid reply : )

Edit2: Still this happens time to time :( And restarting FF fixes it.

This review is for a previous version of the add-on (4.1.1-signed.1-signed). 

We are not facing any issue like you mentioned, both toolbar(addon bar) and statusbar button are working properly. We tested the addon on FF 7.0.1 and its working fine. Could you please try to reinstall the addon?