avast ! firefox addon site unknow ( facebook , google and etc )

i have installed avast addon for firefox, when i went to facebook or google or any other website other than total virus or avast forum it says unknow website… why is this?

i had avast disabled yesterday, i was testing bit defender total security. but now i enabled avast it says that…

any solutions?

Where does it say “unknown site”?

The Avast addon for Firefox is a Social, ad tracking, web analytics tracker/blocker and rates sites as safe/unsafe.

I’m not sure what you’re seeing and/or what your asking.

Remove Bitdefender completely and perform a repair of avast.
http://www.ache.nl/index.php?location=mal-01

http://blog.kaspersky.com/multiple-antivirus-programs-bad-idea/