hi, not sure if / what need to know. have had some major hack problems.
right now am looking at a icon on my firefox for: overall rating / cast your vote (site rating?).
how do i turn the thing off. how do i uninstall it.
Disable…Browser GUI>Tools/Add-Ons/Extensions>untick/disable/remove 
Or
Uninstall…Control Panel>Uninstall a Program>double click “avast”>click “change”>untick “browser protection”>reboot