The Opera browser is used for general Internet applications such as browsing the web, receiving and sending email messages, managing communications, RCC online chat, downloading bit torrents, and reading web feeds. Opera is available for free on computers, mobile phones, and tablets. Opera was launched as a research project at Telenor, Norway's largest telecommunications company. The main components of Opera are tab-based browsing, small features and page zoom, a variety of mouse pointer skins, and an integrated load management section. In terms of security, Opera has internal protection against phishing attacks and software called malware, as well as the ability to stay safe when browsing websites and delete personal information such as cookies.