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Gecko rendering engine

Gecko
Mozillagecko-logo.gif
Developer(s) Mozilla Foundation/Mozilla Corporation, Adobe Systems and others
Stable release
Standard 52.0 / March 7, 2017; 3 days ago (2017-03-07)
ESR 1 52.0 / March 7, 2017; 3 days ago (2017-03-07)
ESR 2 45.8.0 / March 7, 2017; 3 days ago (2017-03-07)
Preview release
Beta 52.0beta / January 25, 2017; 44 days ago (2017-01-25) semiweekly release
Developer Edition 53.0a2 / January 27, 2017; 42 days ago (2017-01-27) daily release
Nightly 54.0a1 / January 29, 2017; 40 days ago (2017-01-29) daily release
Repository hg.mozilla.org/mozilla-central/
Written in C++
Operating system Cross-platform
Type Layout engine
License MPL 2.0
Website https://developer.mozilla.org/en-US/docs/Gecko
Standard 52.0 / March 7, 2017; 3 days ago (2017-03-07)
ESR 1 52.0 / March 7, 2017; 3 days ago (2017-03-07)
ESR 2 45.8.0 / March 7, 2017; 3 days ago (2017-03-07)
Beta 52.0beta / January 25, 2017; 44 days ago (2017-01-25) semiweekly release
Developer Edition 53.0a2 / January 27, 2017; 42 days ago (2017-01-27) daily release
Nightly 54.0a1 / January 29, 2017; 40 days ago (2017-01-29) 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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