The Best!! And. My favourite add-on to block harmful sites and tracking data collected on the web. However I wonder what would happen to my "Non-Personal Data" once a account is registered. Unfortunate it prevents what it does. Read the policy! Never the less I grade them 5.

Xdd

Ok i got ghostry to set up. Firefox comes up with a message "a script is taking to long" "Stop it or wait?" I simply had to wait longer. But the user use to be able to edit the options via add-ons manager. In newer versions they took that away.

100

Dis-activated on FF63.0 (64 bits) because of the CPU usage.