Rated 4 out of 5 stars

Please do not do the user's job by place addon icon to tool-bar or addon-bar atomatically, It is not really necessary, many firefox users have their own favor of placing addon icons, also, by supporting this, you have added two same addon icons into the "Customize Toolbar" dialog, it is really annoying.

This review is for a previous version of the add-on (0.97.5c.1-signed). 

screengrab option -> action -> disable button