Puntuado con 4 de 5 estrellas

Having problems with addonbar icon. I am trying to remove it from addonbar but it returns every time Firefox restarts. Also when I am trying to open script file in window through AdblockPlus or otherwise, I am getting "Page not processed".

Esta valoración es de una versión anterior del complemento (0.6.0.1-signed). 

the Add-on SDK is used for this extension. And this SDK have some limitations regarding widgets (see bug 660860 [https://bugzilla.mozilla.org/show_bug.cgi?id=660860]) so I cannot track widget removal from the add-on bar.
As a workaround, I will add a new setting to choose to have or not a widget in the add-on bar.
For your second problem, could you send to me (see support E-mail field on Linkificator main page) the complete workflow to enable me to try to reproduce the problem.