Thunderbird Release Notes

Version 60.5.0, first offered to channel users on January 29, 2019

Check out "What’s New" and "Known Issues" for this version of Thunderbird below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla. If interested, please see the complete list of changes in this release.

If you have installed Lightning, Thunderbird's Calendar add-on, it will automatically be updated to match the new version of Thunderbird. Refer to this Calendar troubleshooting article in case of problems.

System Requirements: • Window: Windows 7, Windows Server 2008 R2 or later • Mac: Mac OS X 10.9 or later • Linux: GTK+ 3.4 or higher. Details here.

Please refer to Release Notes for version 60.0 to see the list of improvements and fixed issues.

What’s New

  • new

    FileLink provider WeTransfer to upload large attachments

  • new

    Thunderbird now allows the addition of OpenSearch search engines from a local XML file using a minimal user inferface: [+] button to select a file an add, [-] to remove.

  • new

    More search engines: Google and DuckDuckGo available by default in some locales

  • new

    During account creation, Thunderbird will now detect servers using the Microsoft Exchange protocol. It will offer the installation of a 3rd party add-on (Owl) which supports that protocol.

  • fixed

    Thunderbird now compatible with other WebExtension-based FileLink add-ons like the Dropbox add-on

  • fixed

    Crash when using custom sound for new email notification

  • fixed

    WebExtension-based dictionaries from addons.mozilla.org not working in Thunderbird

  • fixed

    Calendar: Printing of calendars not working

  • fixed

    Various security fixes

Known Issues

  • unresolved

    Due to changes in the Mozilla platform profiles stored on Windows network shares addressed via drive letters are now addressed via UNC

  • unresolved

    CalDav access to some servers not working. Workaround: Set preference network.cookie.same-site.enabled to false.

  • unresolved

    Chat: Twitter not working due to API changes at Twitter.com