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2026

Archived version 1 of 2. This is how the model read before it was corrected. It is shown read only. The current version is here.

Mozilla Public License Version 2.0

Also known as MPL-2.0.

Commercial use
the record does not say
Share alike
required
Attribution
required (keep the copyright and license notices)
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Canonical URI https://dalicc.net/licenselibrary/MozillaPublicLicenseVersion20

Permissions

  • Derive from the text Creating a new work from the work, such as a translation, adaptation or arrangement of it or of a part of it.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Display from the text Showing the work to the public without making a copy the viewer keeps.
  • Distribute from the text Providing copies of the work to the public or to anyone else.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Modified works from the text Distributing a modified version of the work that does not amount to a new, derivative work.
  • Modify from the text Altering the work, for example by updating it, without creating a new work; an alteration that creates a new work is Derive.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Source code from the text Providing access to the source code of the work with every copy distributed.
  • Present from the text Performing the work in public, including by broadcast or other communication to the public.
  • Reproduce from the text Making copies of the work in any form.

Prohibitions

  • Change license from the text Not permitted: Change license. Replacing the license of the work, or of an adaptation, with another license, or changing its terms.

License-wide duties

  • Share alike from the text Adaptations have to be licensed under the same license or one the license names as compatible.

Clauses

Warranty disclaimer

Covered Software is provided under this License on an “as is” basis, without warranty of any kind, either expressed, implied, or statutory, including, without limitation, warranties that the Covered Software is free of defects, merchantable, fit for a particular purpose or non-infringing. The entire risk as to the quality and performance of the Covered Software is with You. Should any Covered Software prove defective in any respect, You (not any Contributor) assume the cost of any necessary servicing, repair, or correction. This disclaimer of warranty constitutes an essential part of this License. No use of any Covered Software is authorized under this License except under this disclaimer.

Limitation of liability

Under no circumstances and under no legal theory, whether tort (including negligence), contract, or otherwise, shall any Contributor, or anyone who distributes Covered Software as permitted above, be liable to You for any direct, indirect, special, incidental, or consequential damages of any character including, without limitation, damages for lost profits, loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses, even if such party shall have been informed of the possibility of such damages. This limitation of liability shall not apply to liability for death or personal injury resulting from such party’s negligence to the extent applicable law prohibits such limitation. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so this exclusion and limitation may not apply to You.

Info

Target asset types
Software
Region / jurisdiction
Worldwide
Validity
Perpetual
Source
https://www.mozilla.org/en-US/MPL/2.0/
Legal code
https://www.mozilla.org/en-US/MPL/2.0/
This description is published under
https://dalicc.net/licenselibrary/CC-BY-4.0
Publisher
Mozilla Corporation
SPDX identifier
MPL-2.0 (provisional, the record declares none)
DALICC identifier
MozillaPublicLicenseVersion20

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

  1. Version 2 current2026-09-24 Giray Havur

    The content review of 2026-09-15 added 1 identification detail, 1 permission and 1 prohibition and recorded the review state. Later changes brought it in line with its family and its text in the verification of 2026-09-15, recorded which sentence of the text each statement rests on, named the license the record itself is published under and recorded the licenses a work under it may be released under.

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    31 changes

    • added dalicc:reviewStatus dalicc:Reviewed

      Review state Every record records how far it has come in the editorial workflow and when it was last checked against the legal text.

    • added dalicc:reviewedOn "2026-09-15"^^xsd:date

      Review state Every record records how far it has come in the editorial workflow and when it was last checked against the legal text.

    • added permission cc:CommercialUse

      Review finding Section 2.1(a) grants a "world-wide, royalty-free, non-exclusive license ... to use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions". "Otherwise exploit" with no field-of-use limit is a commercial grant, and section 3.2 contemplates charging for a distribution. The record did not permit cc:CommercialUse, which made a widely used permissive-leaning copyleft license look non-commercial. Added.

    • added prohibition dalicc:promote

      Review finding Section 2.3 ends: "This License does not grant any rights in the trademarks, service marks, or logos of any Contributor (except as may be necessary to comply with the notice requirements in Section 3.4)." Added the dalicc:promote prohibition that 332 other records carry for the same clause.

    • added spdx:licenseId "MPL-2.0"

      Review finding Added MPL-2.0.

    • removed duty cc:ShareAlike

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • added permission dalicc:ChangeLicense

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • added permission dalicc:patentGrant

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • changed permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:SourceCode]

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • changed permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:SourceCode]

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • changed permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:SourceCode]

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • removed prohibition dalicc:ChangeLicense

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • added prohibition dalicc:patentRetaliationTermination

      Manual edit The review's finding on family consistency and consolidation decision 4: the record made no patent statement although section 2.1(b) grants a patent license and section 5.2 is a retaliation clause, and it hung cc:ShareAlike off the license although MPL 2.0 reciprocity is file level: 'You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License' (3.1), while 3.2(b) lets a Larger Work go out 'under terms of Your choice'.

    • added permission cc:DerivativeWorks

      Manual edit Weak-copyleft family alignment of 2026-09-15: the record said nothing about three clauses its text-modelled sibling MPL-2.0-no-copyleft-exception quotes. Section 2.1 grants the right to 'use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions', which is the derivative-works permission; section 3.2(a) lets the distributor pass on the source 'at a charge no more than the cost of distribution to the recipient', which is the distribution fee; and section 3.2(b) lets the distributor 'distribute such Executable Form under the terms of this License, or sublicense it under different terms', which is the sublicensing permission.

    • added permission dalicc:chargeDistributionFee

      Manual edit Weak-copyleft family alignment of 2026-09-15: the record said nothing about three clauses its text-modelled sibling MPL-2.0-no-copyleft-exception quotes. Section 2.1 grants the right to 'use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions', which is the derivative-works permission; section 3.2(a) lets the distributor pass on the source 'at a charge no more than the cost of distribution to the recipient', which is the distribution fee; and section 3.2(b) lets the distributor 'distribute such Executable Form under the terms of this License, or sublicense it under different terms', which is the sublicensing permission.

    • added permission dalicc:sublicense

      Manual edit Weak-copyleft family alignment of 2026-09-15: the record said nothing about three clauses its text-modelled sibling MPL-2.0-no-copyleft-exception quotes. Section 2.1 grants the right to 'use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions', which is the derivative-works permission; section 3.2(a) lets the distributor pass on the source 'at a charge no more than the cost of distribution to the recipient', which is the distribution fee; and section 3.2(b) lets the distributor 'distribute such Executable Form under the terms of this License, or sublicense it under different terms', which is the sublicensing permission.

    • changed permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:derive with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      Manual edit Its duty cc:ShareAlike quotes "You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License."

    • changed permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:distribute with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      Manual edit Its duty cc:ShareAlike quotes "You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License."

    • changed permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      was permission odrl:modify with duties [cc:Attribution, cc:Notice, cc:ShareAlike, cc:SourceCode]

      Manual edit Its duty cc:ShareAlike quotes "You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License."

    • changed prohibition dalicc:promote

      was prohibition dalicc:promote

      Manual edit The statement now quotes the sentence of the licence text it rests on: "This License does not grant any rights in the trademarks, service marks, or logos of any Contributor (except as may be necessary to comply with the notice requirements in Section 3.4)."

    • added dct:license <https://creativecommons.org/licenses/by/4.0/>

      Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.

    • added dalicc:compatibleWith dalicclib:AGPL-3.0

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:AGPL-3.0-or-later

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:GPL-2.0-only

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:GPL-2.0-or-later

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:GPL-3.0-only

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:GPL-3.0-or-later

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:LGPL-2.1-only

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:LGPL-2.1-or-later

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:LGPL-3.0-only

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

    • added dalicc:compatibleWith dalicclib:LGPL-3.0-or-later

      Manual edit Section 3.3 reads: "If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s)", and Section 1.12 defines a Secondary License as "either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses."

  2. Version 1

    The version this model had before the content review of 2026-09-15.

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Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.