The author of this addon says this below, well if you are honest than why don't the developer of this addon state that they use the users to track the websites you visit. Simply put, If the author/developers of this addon are truly transparent....put it in the description of this addon that you track your users, can you do that?
The author says this below, yet they don't state in the description that they track your internet surfing habit. Ask the developer this, do you make money by tracking the users of this addon>? I would say yes they do!
by Wips.com s.r.o. (Developer) on November 8, 2012 · permalink · translate
there is no need to be aware, we don't do anything bad. You can get great functionality for free. If you are referring to the data. You can turn them off in the settings. And we don't collect any harmful data. All of them are completely anonymous.