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These Release Notes cover what's new, download and installation instructions and known issues for Sunbird 0.5 Please read these notes and the bug filing instructions before reporting any bugs to Bugzilla.

What's New in Mozilla Sunbird® 0.5

Mozilla Sunbird 0.5 is the latest release of our standalone calendar application. We recommend that all users upgrade to this latest version.

  • Much more polished user interface in the calendar views
  • Working hours are back
  • Automatic migration of data in Sunbird 0.2,, and Evolution
  • Much improved printing functionality
  • Support for Google Calendar (via the Google Calendar Provider extension)
  • Vastly improved reliability
  • Many performance improvements
  • Many usability improvements
  • A full list of changes that have gone into this release can be found on The Rumbling Edge weblog.

Release Date: June 27, 2007

Downloading and Installing

System Requirements

Before installing, make sure your computer meets the system requirements. Mac OS X users must have Mac OS X 10.2 or greater, and Windows users must have Windows 98 or later. Windows users should read the known issues for their operating system.

Downloading Sunbird 0.5 provides Sunbird for Windows, Linux, and Mac OS X in a variety of languages. To get Sunbird 0.5, download it here.

For builds for other systems and languages not provided, see the Contributed Builds section at the end of this document.

Installing Sunbird

Once you have downloaded Sunbird, follow these instructions to install:


IMPORTANT: Install the updated timezones for Windows. Information on obtaining the updated timezones can be found in Microsoft Knowledge Base article 931836.
Not updating your Windows timezones will result in unreliable and erroneous display and entry of time data! Be sure to do this!

Before installing, uninstall any previous versions of Sunbird you may have. From the Start menu, choose Control Panel. When the Control Panel appears, double click Add/Remove Programs. Select "Mozilla Sunbird" in the list and click Removeto uninstall.

Then, double click the installer to start the install.

Mac OS X

Once you have downloaded the sunbird-0.5.en-US.mac.dmg file, double click the Sunbird Disk Image to open it in Finder, and then drag the Sunbird application onto your hard disk. Drag the icon to your Dock if you want it to appear there.


Extract the tarball in the directory where you want to install Sunbird:

tar -xjvf sunbird-0.5.en-US.linux-i686.tar.gz

This will create a sunbird subdirectory of that directory.

Other Platforms

Extract the compressed archive and run sunbird.

Uninstalling Sunbird

To uninstall Sunbird, follow these instructions:


From the Start menu, choose Control Panel. When the Control Panel appears, double click Add/Remove Programs. Find "Mozilla Sunbird (0.5)" in the list and click Remove to uninstall.

Mac OS X

Drag the Sunbird application to the Trash.


Remove the sunbird folder.

These instructions leave your profile in place in case you install Sunbird again in the future. If you wish to remove your profile folder, remove the location described below in the "Profile Folder" section. Note that by doing this you are destroying all of your calendars, saved passwords, settings and other information and should you decide to use Sunbird again you will be starting with a clean profile.


Other Information

Profile Folder

Sunbird stores your user data in one of the following locations:

Windows 2000, XP Documents and Settings\<UserName>\Application Data\Mozilla\Sunbird
Mac OS X ~/Library/Application Support/Sunbird
Linux and Unix ~/.mozilla/sunbird


Known Issues

This list covers some of the known issues with Sunbird 0.5. Other important known problems in this release are listed on this page. Please read both lists before reporting any new bugs.


  • Due to the lack of official timezone updates from Microsoft for the following Windows releases
    • Windows 98
    • Windows 98 SE
    • Windows ME
    • Windows NT 4.0
    • Windows 2000
    you may experience that events will be shown off by an hour.

    There are unofficial patches available for Windows 98/98 SE/ME and for Windows NT 4.0/2000.
    Note: These patches are not provided by the Mozilla Calendar Project and the developers can not guarantee that these patches will work as intended and do not have unintended side-effects.


  • Poorly designed or incompatible Add-ons can cause problems with Sunbird, including making it crash and slowing down calendar display. If you encounter strange problems relating to parts of Sunbird no longer working, Sunbird not starting, windows with strange or distorted appearance, degraded performance, etc, you may be suffering from Add-on trouble. Restart Sunbird in Safe Mode. On Windows, start using the "Safe Mode" shortcut created in your Start menu or by running sunbird.exe -safe-mode. On Linux, start with ./sunbird -safe-mode and on Mac OS X, run the following command in Terminal: /Applications/ -safe-mode When Sunbird is started in Safe Mode, all Add-ons are disabled. Disable the Add-on that is causing trouble and then start normally.


The following resources contain useful information about Sunbird:


Contributed Builds

These are unofficial builds and may be configured differently than the official builds. They may also be optimized and/or tested for specific platforms.

Solaris builds (contributed by Sun Microsystems)

OS/2 builds (contributed by Peter Weilbacher)

Other Systems

Builds for platforms other than the trio officially offered by can be found on the FTP site.

Localized Builds

Many localized builds are now produced and distributed by on behalf of their authors. View All Systems and Languages to see the set of official builds that we offer.

Builds that have not yet been certified as official Sunbird 0.5 localizations are available by browsing the FTP site.

Previous versions of the Release notes: 0.3.1 | 0.3 | 0.3a2 | 0.3a1
Sunbird® and the Sunbird logo are trademarks of the Mozilla Foundation. All rights reserved.