The Opera Web browser is a popular Web browser developed by Opera Software. This browser works just like what other browsers do and that is to display Web sites, manage contacts, download files, send and receive emails, chat on IRC, as well as read Web feeds. Opera features a lot of user-friendly features such as tabbed browsing wherein the user can browse multiple sites in one window. It also features ad blocking and fraud protection that allows users to enjoy browsing without annoying ads popping up when they are not wanted as well as allows users to be protected from fraud and spam. Opera also allows users to download files from the Internet though the BitTorrent client as well as it is complete with a mail client and IRC chat for email messaging and instant messaging. This browser is also equipped with a speed dial feature and this provides users convenience when it comes to adding unlimited pages in thumbnail form so that when users open a new tab, he or she can just click on the thumbnail corresponding the website he or she wants to visit without having to enter the full URL on the address bar.