To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!

Close

Welcome to Firefox Add-ons.

Choose from thousands of extra features and styles to make Firefox your own.

Close

On the go?

Check out our Mobile Add-ons site.

Close

DuckDuckGo NEXT 20140510

Source Code License

MPL 1.1

The same of https://addons.mozilla.org/en-US/firefox/addon/duckduckgo-ssl/?src=search 
Here is : http://www.mozilla.org/MPL/1.1/