Mozilla Firefox has topped the 2017 rankings for the best web browsers, with approval from both the experts and the common users. The latest version of the browser is efficient in speed as well as system resources. The software has had the most significant system update over the past decade and completely changed the game. With its signature support for extensions and high and advanced security features, the Firefox Quantum 2017 has taken its speed and flexibility up a notch. The Quantum version is equipped with a new system for extensions that prevents the hackers from making malicious changes to the browser’s code ensuring complete internet security for the users.