Lightning (software)

This article is about the Thunderbird calendar extension. For the just-in-time compilation library, see GNU lightning.
Lightning
Developer(s)Mozilla Foundation / Mozilla Corporation
Initial release0.1 (March 2006)
Stable release6.2.6.1 (March 25, 2019; 5 years ago (2019-03-25)[1]) [±]
Preview release6.8b3 (Beta) (March 8, 2019; 5 years ago (2019-03-08)[2][3]) [±]
Written inC++, XUL, XBL, JavaScript
Operating systemLinux, Windows, macOS, others
Available in50 languages
TypePersonal information manager
LicenseMPL 2.0
Websitewww.thunderbird.net/calendar/

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 It superseded the previous Mozilla Sunbird and the older Mozilla Calendar extension.[4] With version 38 of Thunderbird, the Lightning add-on was integrated and preloaded by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.

  1. ^ "Calendar Versions - Mozilla | MDN". Mozilla.org. Retrieved 2019-03-27.
  2. ^ "Lightning :: Versions :: Add-ons for Thunderbird". Mozilla.org. Retrieved 2019-03-27.
  3. ^ "Calendar Versions - Mozilla | MDN". Mozilla.org. Retrieved 2019-03-27.
  4. ^ Lightning Project Launched to Provide Calendar Features for Mozilla Thunderbird- MozillaZine - MozillaZine article announcing the Lightning project and its aims.
  5. ^ "There is no Lightning 4.0 | Mozilla Calendar Project Blog". blog.mozilla.org. Retrieved 2023-10-23.