I have just re installed it (FF Ver 25 Ubuntu 12,04 64 Bit) lets see how things go. (Very easy to use - I installed it from ghostery add ons for FF).
CAT III
[Edit: Was it lost when FF went through one of its many upgrades]
Lost on all computers running FF, IE9 and Chrome
OS were XP, Vista and Win 7
I had read rumors about ghostery selling out to the ad merchants to mine the blocked data of the past to prevent their ads from being blocked in the future.
Certainly there must be enough knowledge on this board to confirm or refute my findings.
All I want is something that works on PPrune