When you start your browsing all the details must be recorded if you want to hide your browsing details, anonymoX is a firefox add on that will provide anonymous browsing. It will help you to hide you IP address. This add-on will slower your browsing activities.
You can simply install anonymoX on your firefox browser after the installation a button will appear near to the “Navigation Bar” here you can set IP and select which country you want. This service helps you to visit blocked or censored websites in your country. You can also set separate anonymization settings for each website.