This add-on displays advertising! Rated 1 out of 5 stars

This add-on displays advertising on Wikipedia (and maybe other websites). This "function" is not documented and not included in the description of the add-on.
Displaying ads without consent of users qualifies this addon as MALWARE.
Answer to Didier Lafleur (Developer): sorry, but advertising should not only be mentioned in the privacy policy, but also in the add-on description.

This "function" is documented in Privacy policy. You can down grade to v0.4.2. or de-activate for some site clicking on the "i".