Responsive Web Design Tester is a Chrome browser extension that lets you test your mobile site on various mobile devices. This plugin reflects both the size and the browser of the mobile device. RWD tester also uses the correct User-Agent, but it does not render web pages in the same way as the mobile device. It is primarily for developers who want to test how a page responds to different devices.
The WOT add-on is a crowd-sourced enhancement to your browser protection
It is a browser add-on which lets you search via your favorite search engine
Mall Creeps
