Right - I left a 3* review stating that this addon is unreliable and stops working or uninstalls itself for no good reason. I then watched it for months and edited that review to say that "yes" it definitely does that and changed it to 2* - I just uninstalled it and reinstalled and IMMEDIATELY it completely uninstalled itself! So it seems the developer can uninstall it at will. What he/she doesn't seem able to do is remove reviews. So now I will never use it again and this review goes down to 1*. If I could give it zero I would.