Thunderbird Release Notes

Version 60.2.1, first offered to channel users on October 2, 2018

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.

Thunderbird version 60.2.1 provides an automatic update from Thunderbird version 52. Note that Thunderbird version 60.1.0 and 60.2.0 were skipped. 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

  • changed

    Calendar: Default values for the first day of the week and working days are now derived from the selected datetime formatting locale (restart after changing locale in the OS required)

  • changed

    Calendar: Switch to a Photon-style icon set for all platforms

  • fixed

    Multiple requests for master password when Google Mail or Calendar OAuth2 is enabled

  • fixed

    Scrollbar of the address entry auto-complete popup does not work

  • fixed

    Security info dialog in compose window does not show certificate status

  • fixed

    Links in the Add-on Manager's search results and theme browsing tabs open in external browser

  • fixed

    Localized versions of Thunderbird didn't show a localized name for the "Drafts" and "Sent" folders for certain IMAP providers (particularly in France)

  • fixed

    Replying to a message with an empty subject inserted Re: twice (not working in Thunderbird 60.0)

  • fixed

    Spellcheck marks disappeared erroneously for words with an apostrophe (not working in Thunderbird 60.0)

  • fixed

    Calendar: First day of the week cannot be set

  • fixed

    Calendar: Several fixes related to cutting/deleting of events and email scheduling

  • fixed

    Various security fixes

Known Issues

  • unresolved

    Thunderbird will hang if HTML signature references non-existent image (solution forthcoming)

  • unresolved

    According to RFC 5721, passwords containing non-ASCII characters are encoded using UTF-8 which can lead to problems with non-compliant providers, for example office365.com

  • unresolved

    Double-clicking on a word in the Write window sometimes launches the Advanced Property Editor or Link Properties dialog

  • 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 (solution forthcoming)