choosealicense.com/_licenses/mpl-2.0.txt

---
title: Mozilla Public License 2.0
spdx-id: MPL-2.0
redirect_from: /licenses/mozilla/
source: https://www.mozilla.org/media/MPL/2.0/index.txt
hidden: false

description: Permissions of this weak copyleft license are conditioned on making available source code of licensed files and modifications of those files under the same license (or in certain cases, one of the GNU licenses). Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. However, a larger work using the licensed work may be distributed under different terms and without source code for files added in the larger work.

how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file.

note: The Mozilla Foundation recommends taking the additional step of adding a boilerplate notice to the top of each file. The boilerplate can be found at the end of the license (Exhibit A).

using:
  - Servo: https://github.com/servo/servo/blob/master/LICENSE
  - Syncthing: https://github.com/syncthing/syncthing/blob/master/LICENSE
  - TimelineJS3: https://github.com/NUKnightLab/TimelineJS3/blob/master/LICENSE

permissions:
  - commercial-use
  - modifications
  - distribution
  - patent-use
  - private-use

conditions:
  - disclose-source
  - include-copyright
  - same-license--file

limitations:
  - liability
  - trademark-use
  - warranty

---

Mozilla Public License Version 2.0

1. Definitions

     1.1. "Contributor" means each individual or legal entity that creates,
     contributes to the creation of, or owns Covered Software.

     1.2. "Contributor Version" means the combination of the Contributions of
     others (if any) used by a Contributor and that particular Contributor's
     Contribution.

     1.3. "Contribution" means Covered Software of a particular Contributor.

     1.4. "Covered Software" means Source Code Form to which the initial
     Contributor has attached the notice in Exhibit A, the Executable Form of
     such Source Code Form, and Modifications of such Source Code Form, in
     each case including portions thereof.

     1.5. "Incompatible With Secondary Licenses" means

          (a) that the initial Contributor has attached the notice described
          in Exhibit B to the Covered Software; or

          (b) that the Covered Software was made available under the terms of
          version 1.1 or earlier of the License, but not also under the terms
          of a Secondary License.

     1.6. "Executable Form" means any form of the work other than Source Code
     Form.

     1.7. "Larger Work" means a work that combines Covered Software with other
     material, in a separate file or files, that is not Covered Software.

     1.8. "License" means this document.

     1.9. "Licensable" means having the right to grant, to the maximum extent
     possible, whether at the time of the initial grant or subsequently, any
     and all of the rights conveyed by this License.

     1.10. "Modifications" means any of the following:

          (a) any file in Source Code Form that results from an addition to,
          deletion from, or modification of the contents of Covered Software;
          or

          (b) any new file in Source Code Form that contains any Covered
          Software.

     1.11. "Patent Claims" of a Contributor means any patent claim(s),
     including without limitation, method, process, and apparatus claims, in
     any patent Licensable by such Contributor that would be infringed, but
     for the grant of the License, by the making, using, selling, offering for
     sale, having made, import, or transfer of either its Contributions or its
     Contributor Version.

     1.12. "Secondary License" means 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.

     1.13. "Source Code Form" means the form of the work preferred for making
     modifications.

     1.14. "You" (or "Your") means an individual or a legal entity exercising
     rights under this License. For legal entities, "You" includes any entity
     that controls, is controlled by, or is under common control with You. For
     purposes of this definition, "control" means (a) the power, direct or
     indirect, to cause the direction or management of such entity, whether by
     contract or otherwise, or (b) ownership of more than fifty percent (50%)
     of the outstanding shares or beneficial ownership of such entity.

2. License Grants and Conditions

     2.1. Grants
     Each Contributor hereby grants You a world-wide, royalty-free,
     non-exclusive license:

          (a) under intellectual property rights (other than patent or
          trademark) Licensable by such Contributor to use, reproduce, make
          available, modify, display, perform, distribute, and otherwise
          exploit its Contributions, either on an unmodified basis, with
          Modifications, or as part of a Larger Work; and

          (b) under Patent Claims of such Contributor to make, use, sell,
          offer for sale, have made, import, and otherwise transfer either its
          Contributions or its Contributor Version.

     2.2. Effective Date
     The licenses granted in Section 2.1 with respect to any Contribution
     become effective for each Contribution on the date the Contributor first
     distributes such Contribution.

     2.3. Limitations on Grant Scope
     The licenses granted in this Section 2 are the only rights granted under
     this License. No additional rights or licenses will be implied from the
     distribution or licensing of Covered Software under this License.
     Notwithstanding Section 2.1(b) above, no patent license is granted by a
     Contributor:

          (a) for any code that a Contributor has removed from Covered
          Software; or

          (b) for infringements caused by: (i) Your and any other third
          party's modifications of Covered Software, or (ii) the combination
          of its Contributions with other software (except as part of its
          Contributor Version); or

          (c) under Patent Claims infringed by Covered Software in the absence
          of its Contributions.

     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).

     2.4. Subsequent Licenses
     No Contributor makes additional grants as a result of Your choice to
     distribute the Covered Software under a subsequent version of this
     License (see Section 10.2) or under the terms of a Secondary License (if
     permitted under the terms of Section 3.3).

     2.5. Representation
     Each Contributor represents that the Contributor believes its
     Contributions are its original creation(s) or it has sufficient rights to
     grant the rights to its Contributions conveyed by this License.

     2.6. Fair Use
     This License is not intended to limit any rights You have under
     applicable copyright doctrines of fair use, fair dealing, or other
     equivalents.

     2.7. Conditions
     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
     Section 2.1.

3. Responsibilities

     3.1. Distribution of Source Form
     All distribution of Covered Software in Source Code Form, including any
     Modifications that You create or to which You contribute, must be under
     the terms of this License. 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. You may not
     attempt to alter or restrict the recipients' rights in the Source Code
     Form.

     3.2. Distribution of Executable Form
     If You distribute Covered Software in Executable Form then:

          (a) such Covered Software must also be made available in Source Code
          Form, as described in Section 3.1, and You must inform recipients of
          the Executable Form how they can obtain a copy of such Source Code
          Form by reasonable means in a timely manner, at a charge no more
          than the cost of distribution to the recipient; and

          (b) You may distribute such Executable Form under the terms of this
          License, or sublicense it under different terms, provided that the
          license for the Executable Form does not attempt to limit or alter
          the recipients' rights in the Source Code Form under this License.

     3.3. Distribution of a Larger Work
     You may create and distribute a Larger Work under terms of Your choice,
     provided that You also comply with the requirements of this License for
     the Covered Software. 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), so that the recipient of
     the Larger Work may, at their option, further distribute the Covered
     Software under the terms of either this License or such Secondary
     License(s).

     3.4. Notices
     You may not remove or alter the substance of any license notices
     (including copyright notices, patent notices, disclaimers of warranty, or
     limitations of liability) contained within the Source Code Form of the
     Covered Software, except that You may alter any license notices to the
     extent required to remedy known factual inaccuracies.

     3.5. Application of Additional Terms
     You may choose to offer, and to charge a fee for, warranty, support,
     indemnity or liability obligations to one or more recipients of Covered
     Software. However, You may do so only on Your own behalf, and not on
     behalf of any Contributor. You must make it absolutely clear that any
     such warranty, support, indemnity, or liability obligation is offered by
     You alone, and You hereby agree to indemnify every Contributor for any
     liability incurred by such Contributor as a result of warranty, support,
     indemnity or liability terms You offer. You may include additional
     disclaimers of warranty and limitations of liability specific to any
     jurisdiction.

4. Inability to Comply Due to Statute or Regulation

If it is impossible for You to comply with any of the terms of this License
with respect to some or all of the Covered Software due to statute, judicial
order, or regulation then You must: (a) comply with the terms of this License
to the maximum extent possible; and (b) describe the limitations and the code
they affect. Such description must be placed in a text file included with all
distributions of the Covered Software under this License. Except to the extent
prohibited by statute or regulation, such description must be sufficiently
detailed for a recipient of ordinary skill to be able to understand it.

5. Termination

     5.1. The rights granted under this License will terminate automatically
     if You fail to comply with any of its terms. However, if You become
     compliant, then the rights granted under this License from a particular
     Contributor are reinstated (a) provisionally, unless and until such
     Contributor explicitly and finally terminates Your grants, and (b) on an
     ongoing basis, if such Contributor fails to notify You of the
     non-compliance by some reasonable means prior to 60 days after You have
     come back into compliance. Moreover, Your grants from a particular
     Contributor are reinstated on an ongoing basis if such Contributor
     notifies You of the non-compliance by some reasonable means, this is the
     first time You have received notice of non-compliance with this License
     from such Contributor, and You become compliant prior to 30 days after
     Your receipt of the notice.

     5.2. If You initiate litigation against any entity by asserting a patent
     infringement claim (excluding declaratory judgment actions,
     counter-claims, and cross-claims) alleging that a Contributor Version
     directly or indirectly infringes any patent, then the rights granted to
     You by any and all Contributors for the Covered Software under Section
     2.1 of this License shall terminate.

     5.3. In the event of termination under Sections 5.1 or 5.2 above, all end
     user license agreements (excluding distributors and resellers) which have
     been validly granted by You or Your distributors under this License prior
     to termination shall survive termination.

6. Disclaimer of Warranty

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.

7. 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.

8. Litigation

Any litigation relating to this License may be brought only in the courts of a
jurisdiction where the defendant maintains its principal place of business and
such litigation shall be governed by laws of that jurisdiction, without
reference to its conflict-of-law provisions. Nothing in this Section shall
prevent a party's ability to bring cross-claims or counter-claims.

9. Miscellaneous

This License represents the complete agreement concerning the subject matter
hereof. If any provision of this License is held to be unenforceable, such
provision shall be reformed only to the extent necessary to make it
enforceable. Any law or regulation which provides that the language of a
contract shall be construed against the drafter shall not be used to construe
this License against a Contributor.

10. Versions of the License

     10.1. New Versions
     Mozilla Foundation is the license steward. Except as provided in Section
     10.3, no one other than the license steward has the right to modify or
     publish new versions of this License. Each version will be given a
     distinguishing version number.

     10.2. Effect of New Versions
     You may distribute the Covered Software under the terms of the version of
     the License under which You originally received the Covered Software, or
     under the terms of any subsequent version published by the license
     steward.

     10.3. Modified Versions
     If you create software not governed by this License, and you want to
     create a new license for such software, you may create and use a modified
     version of this License if you rename the license and remove any
     references to the name of the license steward (except to note that such
     modified license differs from this License).

     10.4. Distributing Source Code Form that is Incompatible With Secondary
     Licenses
     If You choose to distribute Source Code Form that is Incompatible With
     Secondary Licenses under the terms of this version of the License, the
     notice described in Exhibit B of this License must be attached.

Exhibit A - Source Code Form License Notice

     This Source Code Form is subject to the terms of the Mozilla Public
     License, v. 2.0. If a copy of the MPL was not distributed with this file,
     You can obtain one at http://mozilla.org/MPL/2.0/.

If it is not possible or desirable to put the notice in a particular file,
then You may include the notice in a location (such as a LICENSE file in a
relevant directory) where a recipient would be likely to look for such a
notice.

You may add additional accurate notices of copyright ownership.

Exhibit B - "Incompatible With Secondary Licenses" Notice

     This Source Code Form is "Incompatible With Secondary Licenses", as
     defined by the Mozilla Public License, v. 2.0.