No credit card required.
Cocoon is a collection of privacy tools provided to protect you on the web. The Cocoon toolbar is your entryway to the web privacy service and easily added to your Firefox browser.
Just install the Firefox add-on, log in and you’re instantly browsing the web privately. Websites and viruses can only see Cocoon, not you.
"We've shared tools that keep your browsing information private, your internet connection secure, and your email spam-free. Cocoon wraps up all those privacy features into one, simple add-on."