Mozilla.org Site Licensing Policies
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Firefox is no longer supported on Windows 8.1 and below.

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Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

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Mozilla.org Site Licensing Policies

Unless otherwise indicated, the text of documents in this collection is available under the Creative Commons Attribution Share-Alike 3.0 Unported license, or any later version.

Creative Commons License

A summary of the terms of this license is available, as well as its detailed terms.

Rights in the trademarks and service marks of Mozilla, as well as the look and feel of this website, are not licensed under the terms mentioned above. However, we support you making full use of your rights under fair use, fair dealing and other exceptions and limitations to trademark, and Mozilla also allows some additional uses under our Trademark Policy. Please see our Trademark Policy for further information.

If you have any questions about complying with our licensing terms for this collection, you should email:

For more information about these and other licensing policies, please see our Licensing Policies page.