Thunderbird Beta Notes

Version 38.0beta, first offered to Beta channel users on April 2, 2015

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.

Notes are current for Thunderbird 38 beta 6, and are a prototype for the final release notes.

What’s New

  • New

    GMail supports OAuth2 authentication, removing the need to manually select "allow less secure applications" in Google options for the account. (bug 849540)

  • New

    Filter sent messages (bug 11039)

  • New

    Filter messages when archived (bug 479823)

  • New

    Enable search in multiple/all address books (bug 170270)

  • New

    Show expanded columns in folder pane (bug 464973)

  • New

    Allow file-per-message (maildir) local message storage (bug 845952)

  • New

    Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)

  • New

    Add reading position marker line to conversations (bug 760762)

  • New

    Support Internationalized domain name URLs for RSS feeds (Bug 1018589)

  • New

    The editor for twitter should show inputtable character count (bug 736002)

  • Changed

    Make OpenSearch queries open in the user's default browser (bug 1120777)

  • Changed

    Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)

  • Changed

    Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)

  • Changed

    Removed rarely used character sets: T.61-8bit, non-encoding Mac encoders, VISCII, x-viet-tcvn5712, x-viet-vps x-johab, ARMSCII8 , map us-ascii to windows-1252, ISO-8859-6-I and -E and ISO-8859-8-E, (bug 1068505 and others.)

  • Changed

    Disable CONDSTORE support for IMAP to prevent discrepancies in IMAP message status (deleted, unread) on some servers (bug 912216)

  • Fixed

    Replied/forwarded icons disappear after folder repair, detach/delete (bug 840418)

  • Fixed

    Attachment "Save As" files are displayed in Tools/Saved Files (bug 914517)

  • Fixed

    Adding unknown email addresses to Mailing list, then deleting ghost duplicate entries from contacts pane, caused dataloss in mailing list (bug 628035)

  • Fixed

    Web site from RSS feed was not rendered correctly (bug 662907)

  • Fixed

    Email address with leading/trailing whitespace displayed wrongly with added quotes when composing ["foo"@bar.com] (bug 286760)

  • Fixed

    Force display of Sender header if S/MIME sender is the signer (bug 332639)

  • Fixed

    Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)

  • Fixed

    Status bar not accessible (bug 934875)

  • Fixed

    Wrong folder may be deleted when requesting junk delete (bug 1018960)

  • Fixed

    Severe UI stutter or freezes getting new mail for very large folders (bug 870556)

  • Fixed

    Automatically rejoin multi-user conversations on reconnect for XMPP (bug 1014472)

  • Fixed

    Various improvements when using IRC on moznet (bug 1083768 and others)

  • Fixed

    Significantly improve XMPP support (bug 1085022 and others)

  • Fixed

    Fixes for connecting to non-standard IRC networks (bug 870556 and others)

  • Fixed

    Automatically reclaim IRC nicks during a reconnect (bug 1087566)

Known Issues

  • unresolved

    Automatic addon compatibility update checks were not completed, so existing addon compatibilities may not be accurate.