![]() Lightning running on Thunderbird 115.11.0 | |
Developer(s) | Mozilla Foundation / Mozilla Corporation |
---|---|
Initial release | 0.1 (March 2006) |
Stable release | 6.2.6.1 (March 25, 2019[1]) [±] |
Preview release | 6.8b3 (Beta) (March 8, 2019[2][3]) [±] |
Written in | C++, XUL, XBL, JavaScript |
Operating system | Linux, Windows, macOS, others |
Available in | 50 languages |
Type | Personal information manager |
License | MPL 2.0 |
Website | www |
Lightning is a project from the Mozilla Foundation originally designed as an extension ("add-on") that adds calendar and scheduling functionality to the Mozilla Thunderbird mail client and SeaMonkey internet suite. It superseded the previous Mozilla Sunbird and the older Mozilla Calendar extension.[4] With version 38 of Thunderbird, the Lightning add-on was integrated and preloaded by default;[5] since version 78 of Thunderbird (released 2020), Lightning is part of Thunderbird and no longer an add-on extension. Lightning is compatible with iCalendar calendars.