*Attention to all people reading the reviews, there IS an page of settings on which you can DISABLE the popup notifications*: when you click on the Settings button on the extension page, it leads to the version changelog, BUT there is a menu on the left which give access to the actual Settings page, including disabling the doggamned popup.

Why 3 stars instead of 5 ? Some default options are annoying (that darn popup!), I don't find the labels clear enough (despite the translation, which is welcome), the default "Settings" page is misleading, and I haven't actually checked whether or not it works technically. I'll update my rating later.
I miss Self Destruct Cookies but we'll have to see what this young extension is going to become!

@Developer: thank you kindly for your work! I'd suggest putting the Settings first on the Settings page though, on a widescreen the leftside gray menu is not all that obvious ;) And they are more useful than the complete version changelog :p