Dangerous Firefox Add-On Adverdirect.com

Watch out for dangerous firefox add-ons.
Adverdirect.com redirects to google.com, (also on ScamAdviser.com https://www.scamadviser.com/check-website/adverdirect.com)
redirects to protect-web.com domain and trying to install firefox add-on.
Many add-ons can pose a risk to users. Especially those that are not from Mozilla.
They can remotely execute code on the user’s computer where the browser with the add-on is installed.
Never install add-ons from an unknown source.