Big Buttons 1.1.5

Source Code License

Custom License

This add-on's code is licensed under the Mozilla Public License, version 1.1.
The graphics, including the icons are licensed under the following.
Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

http://www.accessfirefox.org/Big-Buttons.php#BigButtonsLicense