Causes SEVERE slowdowns and increases loading times on nearly all webpages. Does not perform well at all. Would not recommend to anyone. The moment I uninstalled the extension, Firefox was immediately faster and smoother. I'll go back to using other extensions. Avoid Ghostery.
EDIT:
I reached to Ghostery support. I'll update if they reply with a solution. For now I am still firmly under the impression that their add-no does not provide a faster experience. Yes, it blocks trackers and ads, but my experience was very slow and unusable.

Funciona perfeito deixando até o acesso mais rapido

Ghostery has started to hide reCaptcha check boxes. Other than that, it seemed to work nicely, but that changed it from nice to annoying, especially since you won't even know that there's one that's supposed to be there to be checked! Deleted.

UPDATE: Ghostery said the problem was fixed. It has lessened, but it is not fixed. Too bad they don't know how to do a whitelist. Deleted again.

after using this
I got no more porn advertisements while streaming anime :D

perfect

Super

Excellent Blocker and protect your privacy. Allow you to view and block trackers you used.