Mozilla Firefox is a fast, light and tidy open source web browser. At  its public launch in 2004 Mozilla Firefox was the first browser to  challenge Microsoft Internet Explorer’s dominance. Since then, Mozilla  Firefox has consistently featured in the top 3 most popular browsers  globally. The key features that have made Mozilla Firefox so popular are  the simple and effective UI, browser speed and strong security  capabilities. The browser is particularly popular with developers thanks  to its open source development and active community of advanced users.   Easier Browsing   Mozilla put of a lot of resources into creating a simple but  effective UI aimed at making browsing quicker and easier. They created  the tab structure that has been adopted by most other browsers. In  recent years Mozilla has also focused on maximizing browsing area by  simplifying toolbar controls  to just a Firefox button (which contains settings and options) and  back/forward buttons. The URL box featur...