From MozillaZine Knowledge Base

Sunbird is a standalone, standards-based calendaring application for managing calendar data, subscribing to iCalendar feeds, and interacting with calendaring services.

Lightning is a Thunderbird extension integrating calendaring with email, built with the same components as Sunbird.

Sunbird and Lightning are still in early stages of development. Alpha test builds for public testing are made available from time to time. Although the stable releases are quite stable, they are recommended for testing purposes only. They can be downloaded from the project's web site. See download sites.

Sunbird and Lightning are based on a rewrite of Calendar Extension, which is no longer in active development.

Community

To follow the progress of Sunbird and Lightning, see the Calendar Weblog.

You can discuss Sunbird and Lightning in mozillaZine's Calendar forum.

Sunbird and Lightning are also discussed in the

mozilla.support.calendar newsgroup/email-list

(archive, feeds, email, newsgroup for newsreader such as Thunderbird).

(Unmonitored newsgroup archives: mozilla.feedback, mozilla.feedback.thunderbird, old netscape.p.m.calendar.)

For developers

Nightly builds for testing by developers are available. They can be downladed from:

sunbird/nightly/latest-trunk

(or by anonymous FTP from the same server). For nightly Lightning builds, see its download page.

Developers interested in the project can follow progress and contribute to the

mozilla.dev.apps.calendar newsgroup/email-list

(archive, feeds, email, newsgroup for newsgroup client such as Thunderbird).

Or chat at:

irc://irc.mozilla.org/calendar

Issues

• See "Release Notes" on the download page for Sunbird or Lightning.
• See known issues.
• There is a bug page on the project website

[edit]

Issue Details

When discussing or reporting issues, be sure to note

• any Error Console messages associated with the issue (Tools | Error Console)
• the Build Id (Help | About, copy last paragraph with all version numbers)
• the Operating System version (and window manager version if relevant)
• the Calendar Provider, if relevant (local SQLite storage, local ics file, remote CalDAV, remote GDATA, remote WebDAV/ics, remote WCAP, or name and version of add-on calendar provider)
• the Calendar Server and version number, if relevant.

Indexes

• Category:Calendar indexes local pages covering the Calendar project, including both Sunbird and Lightning.
• FAQ index covers frequently answered questions.
• Category:Tips - Calendar covers tips and hints for customizations.
• Add-ons Index: indexes add-on extensions, including unpublished ones.
• Wish Index: indexes enhancement discussions with Bugzilla links.