The most stable and secure browser you will ever find. Firefox is a complete JOKE when it comes to stability and security. Available for all platforms including cell phones. Lots of fantastic hidden features such as built in IRC, BitTorrent, file server,e-mail client, document reader, 100% W3C compliance etc. Opera Unite allows you to access your files from another computer or cell phone via the web and Opera Link allows you to access your bookmarks and passwords from another computer running Opera.