Rated 5 out of 5 stars

отлично!Very useful! Unfortunately not compatible with "Quick Search Bar" extension.Also it would be nice, if you make status/addonbar-button optional. I think many users actually dont use it... For now turned it off with "Organize Statusbar".
------ Add. after developer reply: Thanks! And I contacted author of Quick Search Bar - he say that it is problem with his addon and he will fix it.

This review is for a previous version of the add-on (0.4.3.0.1.1-signed). 

Спасибо.
Над совместимостью я работаю.
По поводу возможности прятать кнопку из строки состояния, то это планировалось сделать еще в версии 0.4.2.
Ваши пожелания будут введены в следующей версии.

Thank you.
I work over compatibility.
About the possibility to hide the button from the status bar, it is planned to do even in version 0.4.2.
Your wishes will be introduced in the next version.