Bitdefender TrafficLight is a simple browser extension which will protect your while browsing on the internet. This extension is completely free and available on browsers : Google Chrome, Mozilla Firefox and Safari.
Click here to Download , after downloading... install it on your Browser, then you will see this icon in the upper right corner of your Browser ( I'm using Google Chrome).
Bitdefender TrafficLight in Action.
To go to settings click to the extension icon, then click to settings.