Truman Grade!

WOT is a free internet security addon for Firefox, Internet Explorer, Chrome, and Safari. It uses user ratings to grade sites based on their trustworthiness, respect of user privacy, reliability, and child safety. WOT will warn you about online scams and risky websites that try to deliver malware or send spam.

Be free from worry and improve your overall browser experience with Avast Browser Security and Web Reputation Plugin.

TrafficLight intercepts and scans web traffic before it even reaches the browser, effectively blocking disguised or stealth attacks before it's too late. It works with virtually any browser, and even keeps the look, feel and functionality consistent if you switch browsers.

Avira Browser Safety is a FREE browser extension for Chrome and Firefox that blocks infected websites, protects your privacy and finds you the best deals for what you're shopping for

Safeguard against malicious URLs by scanning your feed using Norton Safe Web. Protect your friends by advising them of malicious URLs you might have in your feed.

Find out about the safety rating of a website before visiting it. AVG Threat Labs reports if a virus has been detected on a website in the last 30 days and helps you stay safe online.