Mozilla、Thunderbird 38.0.1をリリース。拡張機能「Lightning」を統合

Mozillaは、メールソフトThunderbirdの最新版「Thunderbird 38.0.1」をリリースしました。本バージョンは「Firefox ESR」バージョン38.0.1のコードをベースにしたメジャーアップデートとなっています。

今回のアップデートは、前回アップデート「Thunderbird 31.7.0」からのメジャーアップデートとなっています。目玉は、スケジュール管理機能やタスク管理機能を追加する拡張機能「Lightning」が統合されていることでしょう。また、Gmailの「OAuth2」認証サポートおよびYahooメッセンジャーチャットのサポートなどの新機能が多く搭載されています。

▶︎Thunderbird 31.7.0をリリース

Thunderbird 38.0.1の新機能


  • GMail supports OAuth2 authentication, removing the need to manually select "allow less secure applications" in Google options for the account. (bug 849540)
  • Ship Lightning calendar addon with Thunderbird and enable with an opt-out dialog (bug 1113183)
  • Filter sent messages (bug 11039)
  • Filter messages when archived (bug 479823)
  • Enable search in multiple/all address books (bug 170270)
  • Add support for Yahoo Messenger in Chat (bug 955574)
  • Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
  • Show expanded columns in folder pane (bug 464973)
  • Allow file-per-message (maildir) local message storage (bug 845952)
  • Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)
  • Add reading position marker line to conversations (bug 760762)
  • The editor for twitter should show inputtable character count (bug 736002)


  • Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
  • 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.)
  • Disable CONDSTORE support for IMAP to prevent discrepancies in IMAP message status (deleted, unread) on some servers (bug 912216)
  • Make OpenSearch queries open in the user's default browser (bug 1120777)
  • Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)


  • Replied/forwarded icons disappear after folder repair, detach/delete (bug 840418)
  • Attachment "Save As" files are displayed in Tools/Saved Files (bug 914517)
  • Adding unknown email addresses to Mailing list, then deleting ghost duplicate entries from contacts pane, caused dataloss in mailing list (bug 628035)
  • Web site from RSS feed was not rendered correctly (bug 662907)
  • Email address with leading/trailing whitespace displayed wrongly with added quotes when composing ["foo"@bar.com] (bug 286760)
  • Force display of Sender header if S/MIME sender is the signer (bug 332639)
  • Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)
  • Status bar not accessible (bug 934875)
  • Wrong folder may be deleted when requesting junk delete (bug 1018960)
  • Severe UI stutter or freezes getting new mail for very large folders (bug 870556)
  • Automatically rejoin multi-user conversations on reconnect for XMPP (bug 1014472)
  • Various improvements when using IRC on moznet (bug 1083768 and others)
  • Significantly improve XMPP support (bug 1085022 and others)
  • Fixes for connecting to non-standard IRC networks (bug 870556 and others)
  • Automatically reclaim IRC nicks during a reconnect (bug 1087566)
  • Changing location in editor doesn't preserve the font when returning to end of text/line (bug 756984)
  • Inline spell checker loses red underlines after a backspace is used (bug 1100966)


  • Automatic addon compatibility update checks were not completed, so existing addon compatibilities may not be accurate.
  • Copy/Paste into plain text editor deletes newlines from quoted text (bug 1143570)
  • Importing data from Outlook or Eudora crashes (bug 917961)


▶︎ Thunderbirdのダウンロード

無料メールソフト Thunderbird

Thunderbird 31.7.0をリリース(2015/5/20)
Thunderbird 31.6.0をリリース(2015/4/3)
Thunderbird 31.5.0をリリース(2015/2/25)
Thunderbird 31.4.0をリリース(2015/1/14)
Thunderbird 31.3.0をリリース(2014/12/2)
Thunderbird 31.2.0をリリース(2014/10/15)
Thunderbird 31.1.2最新版をリリース(2014/9/25)
Thunderbird 31.1.1最新版をリリース(2014/9/9)
Thunderbird 31.1.0最新版をリリース(2014/9/3)
Thunderbird 31.0最新版をリリース(2014/7/22)

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