nonMPL

nonMPL is a descriptive term used in software licensing discussions to refer to components, libraries, or code that are not licensed under the Mozilla Public License (MPL). It is not a formal license or standardized category; rather, it functions as a label in documentation and conversations about licensing and license compatibility. The MPL is a weak copyleft license that requires modifications to MPL-licensed files to be released under MPL when distributed, and it calls for distribution of corresponding source code. By contrast, nonMPL components may be governed by permissive licenses such as MIT, BSD, or Apache, by other copyleft licenses such as the GPL, or by licensing that places fewer obligations on distribution. The term nonMPL helps differentiate code that carries MPL obligations from code that does not.

In practice, projects with mixed licenses must observe the terms of each license and assess license compatibility when distributing combined works. If a project includes nonMPL components, maintainers may need to provide appropriate license notices, ensure that MPL-licensed portions remain compliant, and avoid embedding MPL-licensed file changes into nonMPL components in ways that violate the licenses.

Limitations and usage notes: because nonMPL is a descriptive label rather than a formal category, its meaning can vary between organizations. Users and developers should consult the exact license texts and project documentation to determine obligations, compatibility, and how to handle distribution and source code disclosure for any mixed-license software.