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# About Mozilla Calendar <index></index>

This chapter contains basic information about , including links to web sites where you can find out more.

Can you write this chapter?

If so, please see the CalendarHelp project's Help Wanted page.

## What is ? <index></index>

is an application program that you can use to maintain calendars. It is based on the iCalendar standard—an open standard for calendar data.

is open source software.

## Available versions <index></index>

is available in versions for various operating systems, including Windows, Macintosh and Linux.

It is available as a stand-alone program, named Sunbird, and also as extensions to other Mozilla products: the mail client, Thunderbird, the web browser, Firefox, and The Mozilla Application Suite.

## Installing <index></index>

## Support <index></index>

## Feedback <index></index>

## Communities <index></index>

September 20, 2004

Copyright © 2004 Contributors to the Mozilla Calendar Project.