BitDefender Traffic Light protects your Web browser from malware and phishing
It's also not nearly as in-your-face as some browser malware defense tools. Traffic Light displays only a small slide-out grab tab that you can click to display its analysis of the current page. When malicious activity is detected, however, Traffic Light will spring into action and prevent the offending code from executing. You'll be giving up a bit of memory -- somewhere between 20 and 30 megs -- but most of us can spare at least that much, especially for some additional Web security.
To install Traffic Light in your browser, visit the BitDefender site. A few clicks later an you'll have unobtrusive malware protection hiding just below your browser's toolbar.