this add-on truly prevents tracking of underlying guuuuuuugel search engine. but at the cost of a catastrophic and completely senseless loss of its functionality.
e.g. queries with "quoted" terms underlying guuuuuuuuuugel cracks like nuts, but this one just fails! instead of passing query down and returning result. but why - too simple?
another issue is overbloating user interaction with fucaptchas in places where underlying guuuuuuuugel just works'n's#it and - surprise - simply succeeds!
the worst thing is they know these issues about a year or more, but seems are not going to fix anything...