Mozilla Sunbird

Mozilla Sunbird is a discontinued free and open-source, cross-platform calendar application that was developed by the Mozilla Foundation, Sun Microsystems and many volunteers.^[3] Mozilla Sunbird was described as "a cross platform standalone calendar application based on Mozilla's XUL user interface language".^[4] Announced in July 2003,^[5] Sunbird was a standalone version of the Mozilla Calendar Project.

Mozilla Sunbird
Mozilla Sunbird main window running under Windows Vista
Developer(s)	Mozilla Foundation and community
Final release	1.0 Beta 1 (March 30, 2010; 15 years ago (2010-03-30)) [±]
Preview release	1.0 Beta 1 (March 30, 2010; 15 years ago (2010-03-30)) [±]
Written in	C++, XUL, XBL, JavaScript
Operating system	Windows, Linux, BSD UNIX, OS X, Solaris, OpenSolaris and OS/2
Available in	Multilingual,[which?][1] EULA in English only[2]
Type	Personal information manager
License	MPL 1.1, MPL 1.1/GNU GPL/GNU LGPL tri-license
Website	www.thunderbird.net/en-US/calendar/

It was developed as a standalone version of the Lightning calendar and scheduling extension for the Mozilla Thunderbird and SeaMonkey mail clients. Development of Sunbird was ended with release 1.0 beta 1 to focus on development of Mozilla Lightning.^[6][7] The latest development version of Sunbird remains 1.0b1 from January 2010, and no later version has been announced. Unlike Lightning, Sunbird no longer receives updates to its time zone database.

Sun contributions

Sun Microsystems contributed significantly to the Lightning extension project to provide users with a free and open-source alternative to Microsoft Office by combining OpenOffice.org and Thunderbird/Lightning.^[8] Sun's key focus areas in addition to general bug fixing were calendar views, team/collaboration features and support for the Sun Java System Calendar Server.^[9] Since both projects share the same code base, any contribution to one is a direct contribution to the other.

Trademark issues and Iceowl

Main article: Debian–Mozilla trademark dispute

Although it is released under a MPL, MPL/GPL/LGPL tri-license, there are trademark restrictions in place on Mozilla Sunbird which prevent the distribution of modified versions with the Mozilla branding.

As a result, the Debian project created Iceowl, a virtually identical version without the branding restrictions.

Release history

Key:
Old Version	Current Version	Future Version

Gecko version	Sunbird version	Release date	Significant changes
1.8	0.2	February 4, 2005
1.9	0.3	October 11, 2006	Calendar storage moved from flat .ICS files to SQLite
	0.3.1	February 19, 2007	Time zones updated for DST change
1.8.1	0.5	June 27, 2007	Moved to Gecko 1.8.1 for added stability and includes support for Google Calendar via an extension.[10]
	0.7	October 25, 2007	Cleaner user interface and additional functionality
	0.8	April 4, 2008	International time zones, experimental offline support and task mode
	0.9	September 23, 2008	Events spanning days now have a visual indicator indicating them as connected events. When reloading a remote calendar a progress indicator is now shown. The so-called "minimonth" (small calendar month in the upper left) has been given a visual overhaul. The calendar views (day, week, multiweek, month) have been given a visual overhaul. CalDAV support and interoperability with various CalDAV servers has been improved.
1.9.1	1.0b1	April 2, 2010	Multiple alarms can be defined for one event. CalDAV support is improved.
	1.0b2	June, 2010

See also

• Lightning for Mozilla Thunderbird and SeaMonkey
• List of personal information managers