One reason of Firefox to be best is the availability of thousands of free plugins / addons out there. You just go to the Firefox addons official resource and download plugins / addons for your Firefox to make your work more easy. Have you ever thought that these plugins can get your computer’s privacy compromised. Yep! Developers from around the world develop these plugins for you to use. Plugins reside with the same browser you use to buy things online using your credit card and the same browser is used to authenticate your username and password with different online services you use. Time to check your browser’s plugins for reliability, version or upgrade alert and vulnerability scan.