Here is the tutorials for hide the IP address during surfing via firefox.
Step one.
Add the following in the software sources for Ubuntu 10.04 and 10.10 versions
deb http://deb.torproject.org/torproject.org lucid main
For various version of ubuntu click the link
Now the type the following in terminal for authentication key
gpg --keyserver keys.gnupg.net --recv 886DDD89
gpg --export A3C4F0F979CAA22CDBA8F512EE8CBC9E886DDD89 | sudo apt-key add -
Then
sudo apt-get update
sudo apt-get install tor tor-geoipdb
Step two
Edit the /etc/polipo/config
Sudo gedit /etc/polipo/config
Erase all content of config file and copy & paste from the link.
Then type the following in terminal for restart the config file
sudo /etc/init.d/polipo restart
Step Three
Open the firefox and intall the add-on
Then restart the firefox.
For checking our ip address go to http://whatismyipaddress.com
Before hide the ip address
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiagFjVLujWYFA7z6NzmDEmUuLPaUf97zHBgPzMaT8hWFMS6j-N0YXy2u7xwBmIXvzdecyuTxJ-H6m3rqH6X-wQm8cc-8fc_dtGKgJ3_Q7m6m13RLMFtZJ6-rX6CwLnmEXotMXYVzCWU_o/s320/Selection_007.png)
After hide the ip address
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiADDAu4iUMXn8etJjhQZ6hXUz8Yh8t52pN0zFORLEpQzI925Fa4tsgBNi3eqemRgT5qDMTPcmwb6Dpf5nYt7vzwyZ1KPHEnTJ_xEOG7xaBowJU9fl4_-Ctq8Q9lkiAa4eCXqW71UtlUFk/s320/Selection_006.png)