If you are concerned about surfing the web anonymously, you should definately try this browser.
A group of security specialists who call themselves Hactivisimo have developed a Torpark, new browser that addresses anonymous web surfing. By routing encrypted Internet traffic through a network of servers called The Onion Router, Torpark manages to conceal the user’s IP address, making it almost impossible to track.
The browser is actually a modified version of Portable Firefox and it does not allow any other version of Firefox concurrently.
Torpark is intended for use on a portable media and it doesn’t require installation on the user’s system. It can be run from the hard disk drive but with only 7MB in size, it can easily be run from a USB flash drive. For increased security and privacy, the program also deletes all data that was created on the portable drive upon exit.
Other applications can be routed through the anonymous network via Torpark by directing the applications traffic to a socks proxy at localhost, port 81.
After putting the software to a simple test, although it introduced a significant delay at loading web pages, Torpark successfully managed to conceal our IP address and to change it on defined intervals. Oh, and one more thing: Torpark comes free.