What are some alternatives?
When comparing Adblock Fast and Ghostery, you can also consider the following products
Adblock Plus - AdBlock Plus is a browser extension for Firefox, Chrome, Opera, and several other popular browsers that prevents intrusive ads like pop-ups and malicious code from appearing on websites you visit.
Crystal - Crystal shows you the best way to communicate with any prospect, customer, or coworker based on their unique personality.
Privacy Badger - Privacy Badger blocks spying ads and invisible trackers. How is Privacy Badger different from Disconnect, Adblock Plus, Ghostery, and other blocking extensions?
StopAd PRO - The ultimate ad blocker for Windows and Mac.
uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
Facebook Clear History - Delete data that Facebook has collected on you