The Amazon Browser Bar is a free add-on available for Firefox 3.6 and higher and Internet Explorer 8 and higher. It comes with features (called apps) to help you search and comparison shop while surfing the web. It requires an Amazon account, and you need to be connected to the Internet for it to work correctly.
It is a browser add-on which lets you search via your favorite search engine
The WOT add-on is a crowd-sourced enhancement to your browser protection
