Information about Mozilla Public License
The Mozilla Public License (MPL) is an open source and free software license. Version 1.0 was developed by Mitchell Baker when she worked as a lawyer at Netscape Communications Corporation and version 1.1 at the Mozilla Foundation.[1] The MPL is characterized as a hybridization of the modified BSD license and GNU General Public License.[2]
The MPL is the license for the Mozilla Application Suite, Mozilla Firefox, Mozilla Thunderbird and other Mozilla software. Adobe has announced it will use MPL to licence its Flex product line by the end of 2007.[3] The MPL has been adapted by others as a license for their software, most notably Sun Microsystems, as the Common Development and Distribution License for OpenSolaris, the open source version of the Solaris 10 operating system.
The Free Software Foundation (FSF) considers the license a free software license, but "not a strong copyleft" one. However, "unlike the X11 license" the license has "some complex restrictions" making it incompatible with the GNU GPL. They urge people not to use the license because of this incompatibility unless the provision in section 13 of the MPL is exercised to provide the work under either the GPL or any other GPL-compatible license.[4] The MPL was approved as an open source software license by the Open Source Initiative.
The Mozilla Suite and Firefox have been relicensed under multiple licenses, including the MPL, GPL and LGPL.[5]
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Netscape Communications (formerly known as Netscape Communications Corporation and commonly known as Netscape
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The MPL is the license for the Mozilla Application Suite, Mozilla Firefox, Mozilla Thunderbird and other Mozilla software. Adobe has announced it will use MPL to licence its Flex product line by the end of 2007.[3] The MPL has been adapted by others as a license for their software, most notably Sun Microsystems, as the Common Development and Distribution License for OpenSolaris, the open source version of the Solaris 10 operating system.
Terms
The license is regarded as a weak copyleft. Specifically, source code copied or changed under the MPL must stay under the MPL. Unlike strong copyleft licenses, the code under the MPL may be combined in a program with proprietary files which would otherwise be derivative works of the MPL code. For example, Netscape 6 and later releases were proprietary versions of the Mozilla Application Suite. For these Netscape releases, AOL Time Warner was also exercising the exclusive rights to proprietary versions that the Netscape Public License provided to itself.The Free Software Foundation (FSF) considers the license a free software license, but "not a strong copyleft" one. However, "unlike the X11 license" the license has "some complex restrictions" making it incompatible with the GNU GPL. They urge people not to use the license because of this incompatibility unless the provision in section 13 of the MPL is exercised to provide the work under either the GPL or any other GPL-compatible license.[4] The MPL was approved as an open source software license by the Open Source Initiative.
The Mozilla Suite and Firefox have been relicensed under multiple licenses, including the MPL, GPL and LGPL.[5]
MPL-based licenses
- Common Development and Distribution License
- Sun Public License
- AROS Public License
- SugarCRM Public License
- Terracotta Public License
References
1. ^ The Time 100: Mitchell Baker: The "Lizard Wrangler" (Marc Andreessen, Time, 18 April 2005
2. ^ Andrew M. St. Laurent, Understanding Open Source & Free Software Licensing, pp. 62-63 (O'Reilly 2004)
3. ^ Adobe, Adobe to Open Source Flex, [1]
4. ^ Free Software Foundation, Various Licenses and Comments about Them: Mozilla Public License, [2]
5. ^ [3]
2. ^ Andrew M. St. Laurent, Understanding Open Source & Free Software Licensing, pp. 62-63 (O'Reilly 2004)
3. ^ Adobe, Adobe to Open Source Flex, [1]
4. ^ Free Software Foundation, Various Licenses and Comments about Them: Mozilla Public License, [2]
5. ^ [3]
External links
- Mozilla Public License, version 1.1, plain text (mozilla.org)
- Annotated Mozilla Public License, version 1.1 (mozilla.org)
- MPL FAQ (mozilla.org)
- Mozilla Relicensing FAQ (mozilla.org)
- List of OSI approved licenses
Open source is a set of principles and practices that promote access to the design and production of goods and knowledge. The term is most commonly applied to the source code of software that is available to the general public with relaxed or non-existent intellectual property
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A free software licence is a software licence which grants recipients rights to modify and redistribute the software which would otherwise be prohibited by copyright law. A free software licence grants, to the recipients, freedoms
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Winifred Mitchell Baker, better known simply as Mitchell Baker, is Chief Executive Officer of the Mozilla Corporation, a subsidiary of the Mozilla Foundation that coordinates development of the open source Mozilla Internet applications, including the Mozilla Firefox web
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For the fish called "lawyer", see .
A lawyer, according to Black's Law Dictionary, is "a person learned in the law; as an attorney, counsel or solicitor; a person licensed to practice law...... Click the link for more information.
For the web browser produced by this corporation, see .
Netscape Communications (formerly known as Netscape Communications Corporation and commonly known as Netscape
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Mozilla Foundation
Logo of the Mozilla Foundation
(the Mozilla mascot)
Founder Mozilla Organization
Type 501(c)(3)
Founded July 15, 2003
Headquarters Mountain View, CA
Origins Mozilla Organization
Products Mozilla Firefox
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Logo of the Mozilla Foundation
(the Mozilla mascot)
Founder Mozilla Organization
Type 501(c)(3)
Founded July 15, 2003
Headquarters Mountain View, CA
Origins Mozilla Organization
Products Mozilla Firefox
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"New" BSD License
Author: Regents of the University of California
Version: N/A
Copyright on the license: Public Domain
Publication date: ?
OSI approved: Yes
Debian approved: Yes
Free Software: Yes
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Author: Regents of the University of California
Version: N/A
Copyright on the license: Public Domain
Publication date: ?
OSI approved: Yes
Debian approved: Yes
Free Software: Yes
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GNU General Public License
Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Maintainer: Mozilla Foundation
OS: Cross-platform
Use: Internet suite
License: MPL, MPL/GPL/LGPL tri-license
Website: www.mozilla.
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OS: Cross-platform
Use: Internet suite
License: MPL, MPL/GPL/LGPL tri-license
Website: www.mozilla.
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Maintainer: Mozilla Corporation / Mozilla Foundation
OS: Cross-platform
Available language(s): Multilingual,[1] EULA in English only[2]
Use: Web browser
License: Mozilla EULA for binary redistribution
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OS: Cross-platform
Available language(s): Multilingual,[1] EULA in English only[2]
Use: Web browser
License: Mozilla EULA for binary redistribution
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Maintainer: Mozilla Corporation
OS: Cross-platform
Available language(s): Multilingual
Use: E-mail client and news client
License: MPL/GPL/LGPL tri-license
Website: www.mozilla.
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OS: Cross-platform
Available language(s): Multilingual
Use: E-mail client and news client
License: MPL/GPL/LGPL tri-license
Website: www.mozilla.
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Adobe Systems Incorporated
Public (NASDAQ: ADBE )
Founded San Jose (1982)
Headquarters San Jose, California, U.S.
Key people Charles Geschke, Founder
John Warnock, Founder
Bruce Chizen, CEO
Shantanu Narayen, Pres.
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Public (NASDAQ: ADBE )
Founded San Jose (1982)
Headquarters San Jose, California, U.S.
Key people Charles Geschke, Founder
John Warnock, Founder
Bruce Chizen, CEO
Shantanu Narayen, Pres.
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Adobe Flex is a software development kit and an IDE for a group of technologies initially released in March of 2004 by Macromedia to support the development and deployment of cross platform, rich Internet applications based on their proprietary Macromedia Flash platform.
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Sun Microsystems
Public (NASDAQ: JAVA )
Founded 1982
Headquarters Santa Clara, California, United States
Key people Scott McNealy, Chairman
Jonathan I.
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Public (NASDAQ: JAVA )
Founded 1982
Headquarters Santa Clara, California, United States
Key people Scott McNealy, Chairman
Jonathan I.
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Common Development and Distribution License (CDDL) is a free software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL), version 1.1.
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OpenSolaris is an open source project created by Sun Microsystems to build a developer community around Solaris Operating System technology. It is aimed at developers, system administrators and users who want to develop and improve operating systems.
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Copyleft is a play on the word copyright and is the practice of using copyright law to remove restrictions on distributing copies and modified versions of a work for others and requiring that the same freedoms be preserved in modified versions.
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source code (commonly just source or code) is any sequence of statements and/or declarations written in some human-readable computer programming language.
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Netscape is the general name for a series of web browsers originally produced by Netscape Communications Corporation, now a subsidiary of AOL. The original browser was once the dominant browser in terms of usage share, but as a result of the first browser war it lost virtually all
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Proprietary software (also called non-free software or closed-source software) is software with restrictions on using, copying and modifying as enforced by the proprietor.
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Time Warner Inc.
Public (NYSE: TWX )
Founded Merger between Time Inc. and Warner Communications (1990); subsequently purchased by AOL (2001)
Headquarters New York City, New York (incorporated in Wilmington, Delaware) [1]
Key people Richard D.
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Public (NYSE: TWX )
Founded Merger between Time Inc. and Warner Communications (1990); subsequently purchased by AOL (2001)
Headquarters New York City, New York (incorporated in Wilmington, Delaware) [1]
Key people Richard D.
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The Netscape Public License (NPL) is a free software license, the license under which Netscape Communications Corporation originally released Mozilla.
Its most notable feature is that it gives the original developer of Mozilla (Netscape, now a subsidiary of Time Warner), the
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Its most notable feature is that it gives the original developer of Mozilla (Netscape, now a subsidiary of Time Warner), the
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The Free Software Foundation (FSF) is a non-profit corporation founded on October 4, 1985 [1] by Richard Stallman to support the free software movement ("free" as in "freedom"), and in particular the GNU Project.
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A free software licence is a software licence which grants recipients rights to modify and redistribute the software which would otherwise be prohibited by copyright law. A free software licence grants, to the recipients, freedoms
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MIT License/X11 license
Author: Massachusetts Institute of Technology
Version: N/A
Copyright on the license: Public Domain
Publication date: 1988
OSI approved: Yes
Debian approved: Yes
Free Software: Yes
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Author: Massachusetts Institute of Technology
Version: N/A
Copyright on the license: Public Domain
Publication date: 1988
OSI approved: Yes
Debian approved: Yes
Free Software: Yes
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Licences of software packages can contain contradictory requirements, rendering it impossible to combine source code from such packages in order to create new software packages.[1]
For example, if one licence says "
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For example, if one licence says "
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GNU General Public License
Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Open source software is computer software which source code is available under a license (or arrangement such as the public domain) that meets the Open source definition. This permits users to use, change, and improve the software, and to redistribute it in modified or unmodified
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The B>Open Source Initiative is an organization dedicated to promoting open-source software.
The organization was founded in February 1998 by Bruce Perens and Eric S. Raymond when Netscape Communications Corporation, published the source code for its flagship Netscape
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The organization was founded in February 1998 by Bruce Perens and Eric S. Raymond when Netscape Communications Corporation, published the source code for its flagship Netscape
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Dual-licensing is the practice of distributing identical software under two different sets of terms and conditions. This may mean two different licenses, or two different sets of licenses.
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