Disconnect Private Browsing (Firefox/Chrome/IE/Safari) is our pick because it protects you from tracking, malware, and malvertising, and offers secure Wi-Fi and bandwidth optimization features that just aren’t available in other tools. It blocks third party tracking cookies and gives you control over all site scripts and elements from a simple-to-use toolbar menu. When malware injects ads onto popular pages, or ad networks are hijacked by embedded malware, Disconnect can protect you from that as well—and it happens more often than you might think. It also protects you from tracking by social networks like Facebook, Google, and Twitter, which use your browsing even off-site to collect data about you. Finally, Disconnect protects you from sidejacking (or widgetjacking), where an attacker can use stolen cookies to access personal data without having to know your password, with its Secure Wi-Fi feature.