Mozilla put of a lot of resources into creating a simple but effecetive 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 mazimizing browsing area by simplifying toolbar controls to just a Firefox button and bak/forward buttons. The URL box features direct Google searching as well as an auto predict/History feature called awesome bar. On the right side of the URL box there are bookmarking, history and refresh buttons. To the right of the URL bos is search box which allows you to customize your search engine options. Outside of that a view button controls what you see below the URL. Next htat you have the download history and home buttons.