Mozilla Sunbird is a redevelopment of the Mozilla Calendar extension. Our goal is to produce a cross platform standalone calendar application based on Mozilla's XUL user interface language. At the moment the "Sunbird" name is a project name. It is not official and may change in the future.

Our intended user is someone who uses Mozilla Firefox (or another browser) as his browser, Mozilla Thunderbird (or another mail client) as his mail client and wants a calendar application based on Mozilla.

In addition, by focusing solely on standalone calendar, we believe we can make some dents in the overall footprint and performance of the calendar application by removing components and chrome we don't need.

At the moment Sunbird is in an experimental stage. Although it is quite stable, we recommend it for testing purposes only.

Here are some key features of "Mozilla Sunbird":

· Open source (MPL / GPL / LGPL)
· Open standards
· Cross-platform
· Extensible

What's New in This Release: [ read full changelog ]

· New storage architecture handles calendars with hundreds or thousands of events more responsively.
· More intuitive interface shows you more of what you need, and less of what you don't.
· Redesigned preferences allow you to easily customize Sunbird for your needs.
· Add-ons support allows you to extend Sunbird's functionality with extensions, themes, and language packs from addons.mozilla.org.
· New Windows installer makes it easier than ever for Windows users to install Sunbird.
· Better printing gives you more ways to print your calendars. Mac users can now print as well!
· 24-hour views show you your entire day, not just a few hours.
· Reliable alarms ensure you are notified about events or tasks.
· Improved localization support means Sunbird can easily install, enable, and disable language packs.
· Vastly improved reliability makes it much more difficult to lose data.
· Many performance improvements