Mozilla Licensing Policies
All Mozilla software is open source. This means that it is not only available for download free of charge, but you have access to the source code and may modify and redistribute our software subject to certain restrictions as detailed in our license agreements. Official binary releases from the Mozilla Corporation are released under the Mozilla Corporation End-User License Agreement, and official binary releases from the Mozilla Foundation are released under the Mozilla Foundation End-User License Agreement.
Although our code is free, it is very important that we strictly enforce our trademark rights, in order to keep them valid. Our trademarks include, among others, the names Mozilla®, mozilla.org®, Firefox®, Thunderbird™, Bugzilla™, Camino®, Sunbird®, SeaMonkey®, and XUL™, as well as the Mozilla logo, Firefox logo, Thunderbird logo and the red lizard logo. (The full list is in the Mozilla Trademark Policy.) This means that, while you have considerable freedom to redistribute and modify our software, there are tight restrictions on your ability to use the Mozilla name and logos, even when built into binaries that we provide.
For more information, please see: