Gecko (layout engine)
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| Developer(s) | Mozilla Foundation / Mozilla Corporation | ||||||
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| Stable release |
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| Preview release |
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| Repository | hg |
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| Written in | C++ | ||||||
| Operating system | Cross-platform | ||||||
| Type | Layout engine | ||||||
| License | MPL 2.0 | ||||||
| Website | https://developer.mozilla.org/en-US/docs/Gecko | ||||||
| Standard | 51.0.1 / January 26, 2017 |
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| ESR | 45.7.0 / January 24, 2017 |
| Beta | 52.0b / January 25, 2017 semiweekly release |
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| Developer Edition | 53.0a2 / January 27, 2017 daily release |
| Nightly | 54.0a1 / January 27, 2017 daily release |
Gecko is a web browser engine used in many applications developed by Mozilla Foundation and the Mozilla Corporation (notably the Firefox web browser including its mobile version other than iOS devices, and their e-mail client Thunderbird), as well as in many other open source software projects. Gecko is free and open-source software subject to the terms of the Mozilla Public License version 2.
It is designed to support open Internet standards, and is used by different applications to display web pages and, in some cases, an application's user interface itself (by rendering XUL). Gecko offers a rich programming API that makes it suitable for a wide variety of roles in Internet-enabled applications, such as web browsers, content presentation, and client/server.
Gecko is written in C++ and is cross-platform, and runs on various operating systems including BSDs, Linux, macOS, Solaris, OS/2, AIX, OpenVMS, and Microsoft Windows. Its development is now overseen by the Mozilla Foundation.
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