Small Firewall 0.3.2.1-signed No Restart
SFW is a simple content filter to limit ADs from crossdomain website.
If a website contains <iframe src="http://ads.othersites.com"></iframe>, and "ads.othersites.com" is not the site currently you are visiting.
This add-on has been preliminarily reviewed by Mozilla. Learn more
This add-on is not compatible with your version of Firefox because of the following: