5 ਤਾਰਿਆਂ ਵਿੱਚ 4 ਮਿਲੇ

How does it protect privacy ? Can it be used instead of No Referer ??....

ਇਹ ਸਮੀਖਿਆ ਐਡ-ਆਨ (2.0.1-signed) ਦੇ ਪਿਛਲੇ ਵਰਜਨ ਲਈ ਹੈ। 

The add-on includes EasyPrivacy and a couple hundred of hand-crafted domains known by tracking users, such as quant server, g analytics, trends live, etc etc

I don't see a relation between that and NoReferer, assuming it just hides the Referrer HTTP header sent to servers.