great same as ghostery but this is more complex and better

Never had a problem with it. GOOD ONE.

The best adblock extension out there.

For the concerns about the hostname and ip permission, see https://github.com/gorhill/uBlock/wiki/Permissions#access-ip-address-and-hostname-information . The permission ONLY means that the addon can make DNS queries, while it still has NO ACCESS to your computer's IP adress. Furthermore, it doesn't have a central server and has no intension to "mine" your data.

I've been using UBlock Origin for about a year and it's so great that I've registered my Firefox account specifically so as to give them a 5-star rating amidst all the fake hysteria about the permissions the new CNAME unmasking functionality needs.

Its soo effective. Best ad blocker in the world. Also don't know how it does it but even best sites cannot detect.