Mozilla Thunderbird en-US x86 Version 141.0
What’s New$$$new$$$Added Archive action to mail notifications$$$$$$new$$$Composer now shows a warning if users configured OpenPGP key expires soon$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when parsing message state$$$$$$fixed$$$The English string for the Angry emoji was incorrectly named as the Yell emoji$$$$$$fixed$$$Incorrect roaming data directory caused regression on Windows and macOS$$$$$$fixed$$$Message archive folder creation could silently stop during async folder creation$$$$$$fixed$$$Folder compaction could fail to complete due to folder write errors$$$$$$fixed$$$Status bar showed previously detached attachment when hovering over a new one$$$$$$fixed$$$URLs for hovered links in status bar could be immediately overwritten$$$$$$fixed$$$Search Messages... dialog could not be opened outside the email tab$$$$$$fixed$$$Creating an event or task from mail failed if the mail was opened in a tab$$$$$$fixed$$$NNTP message pane did not show network error page when network was lost$$$$$$fixed$$$Delete button could remove attachment instead of message$$$$$$fixed$$$Folders sorted incorrectly when manually ordering them$$$$$$fixed$$$New folders were not added alphabetically if folders manually reordered beforehand$$$$$$fixed$$$Any Number was unavailable in address book search with Match all of the following$$$$$$fixed$$$Contact was not found in Advanced Address Book Search if phone number had a period$$$$$$fixed$$$Thunderbird could crash on startup for POP3$$$$$$fixed$$$news: URIs without specific server had incorrect format displayed in status bar$$$$$$fixed$$$Enterprise policy use was not indicated in about:preferences with a link to about:policies$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 141.0
What’s New$$$new$$$Added Archive action to mail notifications$$$$$$new$$$Composer now shows a warning if users configured OpenPGP key expires soon$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when parsing message state$$$$$$fixed$$$The English string for the Angry emoji was incorrectly named as the Yell emoji$$$$$$fixed$$$Incorrect roaming data directory caused regression on Windows and macOS$$$$$$fixed$$$Message archive folder creation could silently stop during async folder creation$$$$$$fixed$$$Folder compaction could fail to complete due to folder write errors$$$$$$fixed$$$Status bar showed previously detached attachment when hovering over a new one$$$$$$fixed$$$URLs for hovered links in status bar could be immediately overwritten$$$$$$fixed$$$Search Messages... dialog could not be opened outside the email tab$$$$$$fixed$$$Creating an event or task from mail failed if the mail was opened in a tab$$$$$$fixed$$$NNTP message pane did not show network error page when network was lost$$$$$$fixed$$$Delete button could remove attachment instead of message$$$$$$fixed$$$Folders sorted incorrectly when manually ordering them$$$$$$fixed$$$New folders were not added alphabetically if folders manually reordered beforehand$$$$$$fixed$$$Any Number was unavailable in address book search with Match all of the following$$$$$$fixed$$$Contact was not found in Advanced Address Book Search if phone number had a period$$$$$$fixed$$$Thunderbird could crash on startup for POP3$$$$$$fixed$$$news: URIs without specific server had incorrect format displayed in status bar$$$$$$fixed$$$Enterprise policy use was not indicated in about:preferences with a link to about:policies$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 140.0
What’s New$$$Added Mark as Spam and Mark as Starred actions to mail notifications$$$Account Hub enabled by default for second email setup$$$What’s Changed$$$Some generic appearance settings were moved from General to Appearance section$$$What’s Fixed$$$Folder cache entries were not cleared when an account was removed$$$Selecting a folder could fail due to an underlying error$$$Thunderbird could crash when copying a local folder to IMAP$$$File > Save As > Template and Reply With Template filter actions failed$$$View Message Source no longer worked for multiple selected messages$$$Creating a new mail account from the menu bar in a message window failed$$$Feed subscriptions were broken$$$List-ID contents could be selected but not copied via context menu$$$Some webpage links could be forced to open in Thunderbird$$$Thunderbird could crash when scrolling folders using up/down arrow keys$$$Secret Key ID field did not sanitize input; causing draft encryption to fail$$$Could not send signed/encrypted messages in some setups due to regression$$$Repaired folders were not reindexed for search after repair$$$Messages with multiple authors or no author were not indexed for global search$$$Messages from authors without email address were not indexed for global search$$$Creating a link from selected text did not work with advanced properties selected$$$Spellcheck no longer highlighted misspelled words in the compose window$$$macOS system notifications worked but email alerts could not be disabled separately$$$Setting different archiving options for multiple identities did not work$$$Thunderbird could crash in debug build when adding a news account$$$Moving back in the calendar import dialog could break the Continue button$$$Add-ons: Optional permission prompts for WebExtensions displayed wrong permissions$$$Density and Font Size menu item buttons used incorrect icons$$$Auto-unsubscribed dialog was intrusive; reappeared; and could not be ignored$$$Thunderbird could show a misleading error message on IMAP login failure$$$Modal alerts shown for expired articles when downloading news for offline use$$$Status bar message did not include newsgroup name along with the account name$$$Reconnecting to an NNTP server was potentially not possible$$$About dialog incorrectly displayed Daily rather than Beta$$$Links in calendar event description were unreadable in dark mode$$$Clicking a mid: link in event created from message did not work$$$Unable to subscribe to more than one network calendar$$$Visual and UX improvements$$$Security fixes$$$Known Issues unresolved$$$Passwords are not remembered in 32-bit MAPI use without a compose window
Mozilla Thunderbird en-US x64 Version 140.0
What’s New$$$Added Mark as Spam and Mark as Starred actions to mail notifications$$$Account Hub enabled by default for second email setup$$$What’s Changed$$$Some generic appearance settings were moved from General to Appearance section$$$What’s Fixed$$$Folder cache entries were not cleared when an account was removed$$$Selecting a folder could fail due to an underlying error$$$Thunderbird could crash when copying a local folder to IMAP$$$File > Save As > Template and Reply With Template filter actions failed$$$View Message Source no longer worked for multiple selected messages$$$Creating a new mail account from the menu bar in a message window failed$$$Feed subscriptions were broken$$$List-ID contents could be selected but not copied via context menu$$$Some webpage links could be forced to open in Thunderbird$$$Thunderbird could crash when scrolling folders using up/down arrow keys$$$Secret Key ID field did not sanitize input; causing draft encryption to fail$$$Could not send signed/encrypted messages in some setups due to regression$$$Repaired folders were not reindexed for search after repair$$$Messages with multiple authors or no author were not indexed for global search$$$Messages from authors without email address were not indexed for global search$$$Creating a link from selected text did not work with advanced properties selected$$$Spellcheck no longer highlighted misspelled words in the compose window$$$macOS system notifications worked but email alerts could not be disabled separately$$$Setting different archiving options for multiple identities did not work$$$Thunderbird could crash in debug build when adding a news account$$$Moving back in the calendar import dialog could break the Continue button$$$Add-ons: Optional permission prompts for WebExtensions displayed wrong permissions$$$Density and Font Size menu item buttons used incorrect icons$$$Auto-unsubscribed dialog was intrusive; reappeared; and could not be ignored$$$Thunderbird could show a misleading error message on IMAP login failure$$$Modal alerts shown for expired articles when downloading news for offline use$$$Status bar message did not include newsgroup name along with the account name$$$Reconnecting to an NNTP server was potentially not possible$$$About dialog incorrectly displayed Daily rather than Beta$$$Links in calendar event description were unreadable in dark mode$$$Clicking a mid: link in event created from message did not work$$$Unable to subscribe to more than one network calendar$$$Visual and UX improvements$$$Security fixes$$$Known Issues unresolved$$$Passwords are not remembered in 32-bit MAPI use without a compose window
Mozilla Thunderbird en-US x86 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0.2
Version 139.0.2 | Released June 10; 2025$$$What’s Fixed$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 139.0.1
Thunderbird Desktop$$$Version 139.0.1 | Released June 2; 2025$$$$$$What’s Fixed$$$Thunderbird could crash when copying a local folder to IMAP$$$Upgrade to 139.0 incorrectly switched Table View to Cards View
Mozilla Thunderbird en-US x64 Version 139.0.1
Thunderbird Desktop$$$Version 139.0.1 | Released June 2; 2025$$$What’s Fixed$$$Thunderbird could crash when copying a local folder to IMAP$$$Upgrade to 139.0 incorrectly switched Table View to Cards View
Mozilla Thunderbird en-US x86 Version 139.0
Version 139.0 | Released May 27; 2025$$$What’s New$$$new$$$Implemented enterprise policy to allow granular in-app notification control$$$$$$new$$$Added Mark as Read and Delete actions to mail notifications$$$$$$new$$$Implemented customizable row count for Cards View in Appearance settings$$$$$$new$$$Implemented ability to manually sort folders in the folder pane$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when setting message compose headers$$$$$$fixed$$$Links in the OAuth authentication window did not open when clicked$$$$$$fixed$$$Access was not allowed to attachments at specific UNC hosts$$$$$$fixed$$$Mail window could stop functioning during and after folder compaction$$$$$$fixed$$$Full folder sorting logic was not used when inserting folders after move$$$$$$fixed$$$mail.compose.other.header headers were not shown in Show All Headers mode$$$$$$fixed$$$Folder was hidden from Favorite when a subfolder was removed$$$$$$fixed$$$Folder tree message counts displayed incorrectly under certain conditions$$$$$$fixed$$$Selection was not restored after manual folder sorting$$$$$$fixed$$$Dragging a folder to a new parent did not insert it correctly for IMAP folders$$$$$$fixed$$$Compact View users had all folders expanded after restart$$$$$$fixed$$$Invite attachments without a name were forwarded as Attached Message Part$$$$$$fixed$$$Chat settings tab remained visible when mail.chat.enabled was false$$$$$$fixed$$$Selected folder was not refreshed when applying Appearance Threading settings$$$$$$fixed$$$Grouped by Sort for all folders in Appearance settings did not work properly$$$$$$fixed$$$Thunderbird could crash if message copying to Sent folder was interrupted$$$$$$fixed$$$System search toggle did not properly reflect and control integration state$$$$$$fixed$$$Dragging attachments to desktop from Thunderbird did not work on macOS$$$$$$fixed$$$Dark mode messages displayed in light mode due to preference setting conflict$$$$$$fixed$$$Cancelling a post to a news server could fail and remove the article$$$$$$fixed$$$Thunderbird could crash in NNTP subscription dialog$$$$$$fixed$$$Newsgroup searches with slashes were not supported with XPAT-enabled servers$$$$$$fixed$$$Offline newsgroup use lacked functionality needed for effective offline access$$$$$$fixed$$$Chat accounts could not be deleted$$$$$$fixed$$$Reminders missed for all-day events when calendar.alarms.showmissed was false$$$$$$fixed$$$Access to multiple CalDAV calendars was not possible$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0
Version 139.0 | Released May 27; 2025$$$What’s New$$$new$$$Implemented enterprise policy to allow granular in-app notification control$$$$$$new$$$Added Mark as Read and Delete actions to mail notifications$$$$$$new$$$Implemented customizable row count for Cards View in Appearance settings$$$$$$new$$$Implemented ability to manually sort folders in the folder pane$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when setting message compose headers$$$$$$fixed$$$Links in the OAuth authentication window did not open when clicked$$$$$$fixed$$$Access was not allowed to attachments at specific UNC hosts$$$$$$fixed$$$Mail window could stop functioning during and after folder compaction$$$$$$fixed$$$Full folder sorting logic was not used when inserting folders after move$$$$$$fixed$$$mail.compose.other.header headers were not shown in Show All Headers mode$$$$$$fixed$$$Folder was hidden from Favorite when a subfolder was removed$$$$$$fixed$$$Folder tree message counts displayed incorrectly under certain conditions$$$$$$fixed$$$Selection was not restored after manual folder sorting$$$$$$fixed$$$Dragging a folder to a new parent did not insert it correctly for IMAP folders$$$$$$fixed$$$Compact View users had all folders expanded after restart$$$$$$fixed$$$Invite attachments without a name were forwarded as Attached Message Part$$$$$$fixed$$$Chat settings tab remained visible when mail.chat.enabled was false$$$$$$fixed$$$Selected folder was not refreshed when applying Appearance Threading settings$$$$$$fixed$$$Grouped by Sort for all folders in Appearance settings did not work properly$$$$$$fixed$$$Thunderbird could crash if message copying to Sent folder was interrupted$$$$$$fixed$$$System search toggle did not properly reflect and control integration state$$$$$$fixed$$$Dragging attachments to desktop from Thunderbird did not work on macOS$$$$$$fixed$$$Dark mode messages displayed in light mode due to preference setting conflict$$$$$$fixed$$$Cancelling a post to a news server could fail and remove the article$$$$$$fixed$$$Thunderbird could crash in NNTP subscription dialog$$$$$$fixed$$$Newsgroup searches with slashes were not supported with XPAT-enabled servers$$$$$$fixed$$$Offline newsgroup use lacked functionality needed for effective offline access$$$$$$fixed$$$Chat accounts could not be deleted$$$$$$fixed$$$Reminders missed for all-day events when calendar.alarms.showmissed was false$$$$$$fixed$$$Access to multiple CalDAV calendars was not possible$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 139.0
Version 139.0 | Released May 27; 2025$$$What’s New$$$new$$$Implemented enterprise policy to allow granular in-app notification control$$$$$$new$$$Added Mark as Read and Delete actions to mail notifications$$$$$$new$$$Implemented customizable row count for Cards View in Appearance settings$$$$$$new$$$Implemented ability to manually sort folders in the folder pane$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when setting message compose headers$$$$$$fixed$$$Links in the OAuth authentication window did not open when clicked$$$$$$fixed$$$Access was not allowed to attachments at specific UNC hosts$$$$$$fixed$$$Mail window could stop functioning during and after folder compaction$$$$$$fixed$$$Full folder sorting logic was not used when inserting folders after move$$$$$$fixed$$$mail.compose.other.header headers were not shown in Show All Headers mode$$$$$$fixed$$$Folder was hidden from Favorite when a subfolder was removed$$$$$$fixed$$$Folder tree message counts displayed incorrectly under certain conditions$$$$$$fixed$$$Selection was not restored after manual folder sorting$$$$$$fixed$$$Dragging a folder to a new parent did not insert it correctly for IMAP folders$$$$$$fixed$$$Compact View users had all folders expanded after restart$$$$$$fixed$$$Invite attachments without a name were forwarded as Attached Message Part$$$$$$fixed$$$Chat settings tab remained visible when mail.chat.enabled was false$$$$$$fixed$$$Selected folder was not refreshed when applying Appearance Threading settings$$$$$$fixed$$$Grouped by Sort for all folders in Appearance settings did not work properly$$$$$$fixed$$$Thunderbird could crash if message copying to Sent folder was interrupted$$$$$$fixed$$$System search toggle did not properly reflect and control integration state$$$$$$fixed$$$Dragging attachments to desktop from Thunderbird did not work on macOS$$$$$$fixed$$$Dark mode messages displayed in light mode due to preference setting conflict$$$$$$fixed$$$Cancelling a post to a news server could fail and remove the article$$$$$$fixed$$$Thunderbird could crash in NNTP subscription dialog$$$$$$fixed$$$Newsgroup searches with slashes were not supported with XPAT-enabled servers$$$$$$fixed$$$Offline newsgroup use lacked functionality needed for effective offline access$$$$$$fixed$$$Chat accounts could not be deleted$$$$$$fixed$$$Reminders missed for all-day events when calendar.alarms.showmissed was false$$$$$$fixed$$$Access to multiple CalDAV calendars was not possible$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 139.0
Version 139.0 | Released May 27; 2025$$$What’s New$$$new$$$Implemented enterprise policy to allow granular in-app notification control$$$$$$new$$$Added Mark as Read and Delete actions to mail notifications$$$$$$new$$$Implemented customizable row count for Cards View in Appearance settings$$$$$$new$$$Implemented ability to manually sort folders in the folder pane$$$$$$What’s Fixed$$$fixed$$$Thunderbird could crash when setting message compose headers$$$$$$fixed$$$Links in the OAuth authentication window did not open when clicked$$$$$$fixed$$$Access was not allowed to attachments at specific UNC hosts$$$$$$fixed$$$Mail window could stop functioning during and after folder compaction$$$$$$fixed$$$Full folder sorting logic was not used when inserting folders after move$$$$$$fixed$$$mail.compose.other.header headers were not shown in Show All Headers mode$$$$$$fixed$$$Folder was hidden from Favorite when a subfolder was removed$$$$$$fixed$$$Folder tree message counts displayed incorrectly under certain conditions$$$$$$fixed$$$Selection was not restored after manual folder sorting$$$$$$fixed$$$Dragging a folder to a new parent did not insert it correctly for IMAP folders$$$$$$fixed$$$Compact View users had all folders expanded after restart$$$$$$fixed$$$Invite attachments without a name were forwarded as Attached Message Part$$$$$$fixed$$$Chat settings tab remained visible when mail.chat.enabled was false$$$$$$fixed$$$Selected folder was not refreshed when applying Appearance Threading settings$$$$$$fixed$$$Grouped by Sort for all folders in Appearance settings did not work properly$$$$$$fixed$$$Thunderbird could crash if message copying to Sent folder was interrupted$$$$$$fixed$$$System search toggle did not properly reflect and control integration state$$$$$$fixed$$$Dragging attachments to desktop from Thunderbird did not work on macOS$$$$$$fixed$$$Dark mode messages displayed in light mode due to preference setting conflict$$$$$$fixed$$$Cancelling a post to a news server could fail and remove the article$$$$$$fixed$$$Thunderbird could crash in NNTP subscription dialog$$$$$$fixed$$$Newsgroup searches with slashes were not supported with XPAT-enabled servers$$$$$$fixed$$$Offline newsgroup use lacked functionality needed for effective offline access$$$$$$fixed$$$Chat accounts could not be deleted$$$$$$fixed$$$Reminders missed for all-day events when calendar.alarms.showmissed was false$$$$$$fixed$$$Access to multiple CalDAV calendars was not possible$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 138.0
Thunderbird Desktop$$$Version 138.0 | Released April 29; 2025$$$$$$What’s New$$$new$$$New mail alert now includes message disposition buttons$$$$$$new$$$New mail notification customization added to macOS Settings$$$$$$What’s Changed$$$changed$$$Changed color override defaults with high contrast mode on macOS and Linux$$$$$$What’s Fixed$$$fixed$$$macOS notifications displayed two logos$$$$$$fixed$$$Message preview truncation in notifications improved$$$$$$fixed$$$Wrong day of week displayed for some emails$$$$$$fixed$$$In dark mode with light theme; message reader still displayed in dark mode$$$$$$fixed$$$Message link and text colors were incorrect when using Dark Reader$$$$$$fixed$$$Unchecking Show all headers in Message Header Settings closed dialog$$$$$$fixed$$$Address book did not match users when case differed in some instances$$$$$$fixed$$$Menu items to manage folders were not disabled in offline mode$$$$$$fixed$$$Using Delete column in Search Messages... window could delete other messages$$$$$$fixed$$$Ctrl or Shift selecting multiple messages reset when dragging across a message$$$$$$fixed$$$Newsgroups could no longer be re-ordered in the folder tree via drag and drop$$$$$$fixed$$$Windows users with non-ASCII folder names and profile paths could not view emails$$$$$$fixed$$$OpenPGP key was not updated when accepted key was reimported with new identities$$$$$$fixed$$$Dual signed (PGP and S/MIME) emails were not displayed$$$$$$fixed$$$Notification duration preference enabled when system notifications were enabled$$$$$$fixed$$$Thunderbird could crash when adaptive message filtering was enabled$$$$$$fixed$$$CardDAV synchronization to Zimbra server failed$$$$$$fixed$$$Keyboard navigation was not possible when first header button was disabled$$$$$$fixed$$$Folders missing from view when Show only subscribed folders was not selected$$$$$$fixed$$$Nickserv messages appeared during successful authentication$$$$$$fixed$$$Global indexing failed when processing email with invalid calendar data$$$$$$fixed$$$Clicking a mid: link in Calendar opened two copies of the message$$$$$$fixed$$$Some calendar requests were blocked due to opaque response blocking$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 138.0
Thunderbird Desktop$$$Version 138.0 | Released April 29; 2025$$$$$$What’s New$$$new$$$New mail alert now includes message disposition buttons$$$$$$new$$$New mail notification customization added to macOS Settings$$$$$$What’s Changed$$$changed$$$Changed color override defaults with high contrast mode on macOS and Linux$$$$$$What’s Fixed$$$fixed$$$macOS notifications displayed two logos$$$$$$fixed$$$Message preview truncation in notifications improved$$$$$$fixed$$$Wrong day of week displayed for some emails$$$$$$fixed$$$In dark mode with light theme; message reader still displayed in dark mode$$$$$$fixed$$$Message link and text colors were incorrect when using Dark Reader$$$$$$fixed$$$Unchecking Show all headers in Message Header Settings closed dialog$$$$$$fixed$$$Address book did not match users when case differed in some instances$$$$$$fixed$$$Menu items to manage folders were not disabled in offline mode$$$$$$fixed$$$Using Delete column in Search Messages... window could delete other messages$$$$$$fixed$$$Ctrl or Shift selecting multiple messages reset when dragging across a message$$$$$$fixed$$$Newsgroups could no longer be re-ordered in the folder tree via drag and drop$$$$$$fixed$$$Windows users with non-ASCII folder names and profile paths could not view emails$$$$$$fixed$$$OpenPGP key was not updated when accepted key was reimported with new identities$$$$$$fixed$$$Dual signed (PGP and S/MIME) emails were not displayed$$$$$$fixed$$$Notification duration preference enabled when system notifications were enabled$$$$$$fixed$$$Thunderbird could crash when adaptive message filtering was enabled$$$$$$fixed$$$CardDAV synchronization to Zimbra server failed$$$$$$fixed$$$Keyboard navigation was not possible when first header button was disabled$$$$$$fixed$$$Folders missing from view when Show only subscribed folders was not selected$$$$$$fixed$$$Nickserv messages appeared during successful authentication$$$$$$fixed$$$Global indexing failed when processing email with invalid calendar data$$$$$$fixed$$$Clicking a mid: link in Calendar opened two copies of the message$$$$$$fixed$$$Some calendar requests were blocked due to opaque response blocking$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x86 Version 138.0
Thunderbird Desktop$$$Version 138.0 | Released April 29; 2025$$$$$$What’s New$$$new$$$New mail alert now includes message disposition buttons$$$$$$new$$$New mail notification customization added to macOS Settings$$$$$$What’s Changed$$$changed$$$Changed color override defaults with high contrast mode on macOS and Linux$$$$$$What’s Fixed$$$fixed$$$macOS notifications displayed two logos$$$$$$fixed$$$Message preview truncation in notifications improved$$$$$$fixed$$$Wrong day of week displayed for some emails$$$$$$fixed$$$In dark mode with light theme; message reader still displayed in dark mode$$$$$$fixed$$$Message link and text colors were incorrect when using Dark Reader$$$$$$fixed$$$Unchecking Show all headers in Message Header Settings closed dialog$$$$$$fixed$$$Address book did not match users when case differed in some instances$$$$$$fixed$$$Menu items to manage folders were not disabled in offline mode$$$$$$fixed$$$Using Delete column in Search Messages... window could delete other messages$$$$$$fixed$$$Ctrl or Shift selecting multiple messages reset when dragging across a message$$$$$$fixed$$$Newsgroups could no longer be re-ordered in the folder tree via drag and drop$$$$$$fixed$$$Windows users with non-ASCII folder names and profile paths could not view emails$$$$$$fixed$$$OpenPGP key was not updated when accepted key was reimported with new identities$$$$$$fixed$$$Dual signed (PGP and S/MIME) emails were not displayed$$$$$$fixed$$$Notification duration preference enabled when system notifications were enabled$$$$$$fixed$$$Thunderbird could crash when adaptive message filtering was enabled$$$$$$fixed$$$CardDAV synchronization to Zimbra server failed$$$$$$fixed$$$Keyboard navigation was not possible when first header button was disabled$$$$$$fixed$$$Folders missing from view when Show only subscribed folders was not selected$$$$$$fixed$$$Nickserv messages appeared during successful authentication$$$$$$fixed$$$Global indexing failed when processing email with invalid calendar data$$$$$$fixed$$$Clicking a mid: link in Calendar opened two copies of the message$$$$$$fixed$$$Some calendar requests were blocked due to opaque response blocking$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en-US x64 Version 138.0
Thunderbird Desktop$$$Version 138.0 | Released April 29; 2025$$$$$$What’s New$$$new$$$New mail alert now includes message disposition buttons$$$$$$new$$$New mail notification customization added to macOS Settings$$$$$$What’s Changed$$$changed$$$Changed color override defaults with high contrast mode on macOS and Linux$$$$$$What’s Fixed$$$fixed$$$macOS notifications displayed two logos$$$$$$fixed$$$Message preview truncation in notifications improved$$$$$$fixed$$$Wrong day of week displayed for some emails$$$$$$fixed$$$In dark mode with light theme; message reader still displayed in dark mode$$$$$$fixed$$$Message link and text colors were incorrect when using Dark Reader$$$$$$fixed$$$Unchecking Show all headers in Message Header Settings closed dialog$$$$$$fixed$$$Address book did not match users when case differed in some instances$$$$$$fixed$$$Menu items to manage folders were not disabled in offline mode$$$$$$fixed$$$Using Delete column in Search Messages... window could delete other messages$$$$$$fixed$$$Ctrl or Shift selecting multiple messages reset when dragging across a message$$$$$$fixed$$$Newsgroups could no longer be re-ordered in the folder tree via drag and drop$$$$$$fixed$$$Windows users with non-ASCII folder names and profile paths could not view emails$$$$$$fixed$$$OpenPGP key was not updated when accepted key was reimported with new identities$$$$$$fixed$$$Dual signed (PGP and S/MIME) emails were not displayed$$$$$$fixed$$$Notification duration preference enabled when system notifications were enabled$$$$$$fixed$$$Thunderbird could crash when adaptive message filtering was enabled$$$$$$fixed$$$CardDAV synchronization to Zimbra server failed$$$$$$fixed$$$Keyboard navigation was not possible when first header button was disabled$$$$$$fixed$$$Folders missing from view when Show only subscribed folders was not selected$$$$$$fixed$$$Nickserv messages appeared during successful authentication$$$$$$fixed$$$Global indexing failed when processing email with invalid calendar data$$$$$$fixed$$$Clicking a mid: link in Calendar opened two copies of the message$$$$$$fixed$$$Some calendar requests were blocked due to opaque response blocking$$$$$$fixed$$$Visual and UX improvements$$$$$$fixed$$$Security fixes
Mozilla Thunderbird en Version 137.0.1
Customizable email client
Mozilla Thunderbird en Version 137.0.1
Customizable email client
Mozilla Thunderbird en-US x86 Version 137.0.1
Thunderbird Desktop$$$Version 137.0.1 | Released April 4; 2025$$$What’s Fixed$$$fixed$$$Added delay to built-in notifications when new profile is created in offline mode
Mozilla Thunderbird en-US x64 Version 137.0.1
Thunderbird Desktop$$$Version 137.0.1 | Released April 4; 2025$$$What’s Fixed$$$fixed$$$Added delay to built-in notifications when new profile is created in offline mode
Mozilla Thunderbird en-US x86 Version 137.0.1
Thunderbird Desktop$$$Version 137.0.1 | Released April 4; 2025$$$What’s Fixed$$$fixed$$$Added delay to built-in notifications when new profile is created in offline mode
Mozilla Thunderbird en-US x64 Version 137.0.1
Thunderbird Desktop$$$Version 137.0.1 | Released April 4; 2025$$$What’s Fixed$$$fixed$$$Added delay to built-in notifications when new profile is created in offline mode
Mozilla Thunderbird en Version 135.0.1
Customizable email client
Mozilla Thunderbird en Version 135.0
Customizable email client
Mozilla Thunderbird en Version 135.0
Customizable email client
Mozilla Thunderbird en-US x86 Version 125.0
Not yet updated by Vendor.
Mozilla Thunderbird en-US x64 Version 125.0
Not yet updated by vendor.
Mozilla Thunderbird en-US x86 Version 125.0
Not yet updated by Vendor.
Mozilla Thunderbird en-US x64 Version 125.0
Not yet updated by vendor.
Mozilla Thunderbird en-US x86 Version 115.10.1
FIXES$$$FIXED$$$Thunderbird processes did not exit cleanly; user intervention was required via task manager$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$After changing password on an IMAP account; the account could become locked due to too many failed login attempts
Mozilla Thunderbird en-US x64 Version 115.10.1
FIXES$$$FIXED$$$Thunderbird processes did not exit cleanly; user intervention was required via task manager$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$After changing password on an IMAP account; the account could become locked due to too many failed login attempts
Mozilla Thunderbird en-US x86 Version 115.10.1
FIXES$$$FIXED$$$Thunderbird processes did not exit cleanly; user intervention was required via task manager$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$After changing password on an IMAP account; the account could become locked due to too many failed login attempts
Mozilla Thunderbird en-US x64 Version 115.10.1
FIXES$$$FIXED$$$Thunderbird processes did not exit cleanly; user intervention was required via task manager$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$After changing password on an IMAP account; the account could become locked due to too many failed login attempts
Mozilla Thunderbird en-US x64 Version 115.9.0
FIXES$$$FIXED$$$Opened ignored messages in a message thread/subthread were not marked as read in IMAP folders$$$$$$FIXED$$$Multi-language spellcheck sometimes skipped languages$$$$$$FIXED$$$Thread tree did not update when live language switching$$$$$$FIXED$$$Visual improvements to Reorder Attachments popup$$$$$$FIXED$$$Sort order was sometimes incorrect in Grouped By views$$$$$$FIXED$$$Selecting Match all messages in Filter Rules dialog did not disable all search criteria$$$$$$FIXED$$$S/MIME-only signed messages sometimes incorrectly displayed signature as invalid$$$$$$FIXED$$$OpenPGP keys uploaded to an HKP keyserver were sent with the wrong Content-Type header$$$$$$FIXED$$$Keyboard navigation within search toolbar did not work$$$$$$FIXED$$$Flatpak builds only had the en-US spell check dictionary available$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.9.0
FIXES$$$FIXED$$$Opened ignored messages in a message thread/subthread were not marked as read in IMAP folders$$$$$$FIXED$$$Multi-language spellcheck sometimes skipped languages$$$$$$FIXED$$$Thread tree did not update when live language switching$$$$$$FIXED$$$Visual improvements to Reorder Attachments popup$$$$$$FIXED$$$Sort order was sometimes incorrect in Grouped By views$$$$$$FIXED$$$Selecting Match all messages in Filter Rules dialog did not disable all search criteria$$$$$$FIXED$$$S/MIME-only signed messages sometimes incorrectly displayed signature as invalid$$$$$$FIXED$$$OpenPGP keys uploaded to an HKP keyserver were sent with the wrong Content-Type header$$$$$$FIXED$$$Keyboard navigation within search toolbar did not work$$$$$$FIXED$$$Flatpak builds only had the en-US spell check dictionary available$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 115.7.0
WHAT’S NEW$$$NEW$$$Autocrypt Gossip key distribution added$$$$$$FIXES$$$FIXED$$$When starting Thunderbird; unread message count did not appear on collapsed accounts$$$$$$FIXED$$$Blank window was sometimes displayed when starting Thunderbird$$$$$$FIXED$$$Thunderbird --chrome flag incorrectly opened extra messenger.xhtml$$$$$$FIXED$$$Add-ons did not start correctly when opening Thunderbird from other programs$$$$$$FIXED$$$Drag-and-drop installation of add-ons did not work if Add-ons Manager was opened from Unified Toolbar$$$$$$FIXED$$$Double-clicking empty space in message pane incorrectly opened the currently selected message$$$$$$FIXED$$$Canceling SMTP send before progress reached 100% did not stop message from sending$$$$$$FIXED$$$PDF attachments open in a separate tab did not always restore correctly after restarting Thunderbird$$$$$$FIXED$$$Some OpenPGP dialogs were too small for their contents$$$$$$FIXED$$$Account Manager did not work with hostnames entered as punycode$$$$$$FIXED$$$Downloading complete message from POP3 headers caused message tab/window to close when Close message window/tab on move or delete was enabled$$$$$$FIXED$$$Some ECC GPG keys could not be exported$$$$$$FIXED$$$Contacts deleted from mailing list view still visible in Details view$$$$$$FIXED$$$After selecting contacts in Address Book and starting a new search; the search results list did not update$$$$$$FIXED$$$Various UX and visual improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.7.0
WHAT’S NEW$$$NEW$$$Autocrypt Gossip key distribution added$$$$$$FIXES$$$FIXED$$$When starting Thunderbird; unread message count did not appear on collapsed accounts$$$$$$FIXED$$$Blank window was sometimes displayed when starting Thunderbird$$$$$$FIXED$$$Thunderbird --chrome flag incorrectly opened extra messenger.xhtml$$$$$$FIXED$$$Add-ons did not start correctly when opening Thunderbird from other programs$$$$$$FIXED$$$Drag-and-drop installation of add-ons did not work if Add-ons Manager was opened from Unified Toolbar$$$$$$FIXED$$$Double-clicking empty space in message pane incorrectly opened the currently selected message$$$$$$FIXED$$$Canceling SMTP send before progress reached 100% did not stop message from sending$$$$$$FIXED$$$PDF attachments open in a separate tab did not always restore correctly after restarting Thunderbird$$$$$$FIXED$$$Some OpenPGP dialogs were too small for their contents$$$$$$FIXED$$$Account Manager did not work with hostnames entered as punycode$$$$$$FIXED$$$Downloading complete message from POP3 headers caused message tab/window to close when Close message window/tab on move or delete was enabled$$$$$$FIXED$$$Some ECC GPG keys could not be exported$$$$$$FIXED$$$Contacts deleted from mailing list view still visible in Details view$$$$$$FIXED$$$After selecting contacts in Address Book and starting a new search; the search results list did not update$$$$$$FIXED$$$Various UX and visual improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.6.1
WHAT’S NEW$$$NEW$$$OAuth2 now supported for comcast.net$$$$$$FIXES$$$FIXED$$$High CPU usage sometimes occurred with IMAP CONDSTORE (conditional STORE) enabled$$$$$$FIXED$$$Replying to a collapsed thread via keyboard shortcut (Ctrl+R/Cmd+R) opened a reply for every message in the thread$$$$$$FIXED$$$Enabling Grouped By view after reversing sort order of column header caused messages to be grouped incorrectly$$$$$$FIXED$$$Opening thread pane context menu via keyboard did not always scroll view to selection$$$$$$FIXED$$$New mail indicator for POP3 accounts did not indicate new messages ready to be downloaded$$$$$$FIXED$$$Messages could not be moved to folders using Message > Move To if text or a link in the message had been clicked on first$$$$$$FIXED$$$MIME part boundaries were not properly terminated
Mozilla Thunderbird en-US x64 Version 115.6.1
WHAT’S NEW$$$NEW$$$OAuth2 now supported for comcast.net$$$$$$FIXES$$$FIXED$$$High CPU usage sometimes occurred with IMAP CONDSTORE (conditional STORE) enabled$$$$$$FIXED$$$Replying to a collapsed thread via keyboard shortcut (Ctrl+R/Cmd+R) opened a reply for every message in the thread$$$$$$FIXED$$$Enabling Grouped By view after reversing sort order of column header caused messages to be grouped incorrectly$$$$$$FIXED$$$Opening thread pane context menu via keyboard did not always scroll view to selection$$$$$$FIXED$$$New mail indicator for POP3 accounts did not indicate new messages ready to be downloaded$$$$$$FIXED$$$Messages could not be moved to folders using Message > Move To if text or a link in the message had been clicked on first$$$$$$FIXED$$$MIME part boundaries were not properly terminated
Mozilla Thunderbird en-US x86 Version 115.6.0
FIXED$$$Message selection misbehaved after selecting a sub-message in an expanded thread; collapsing the thread; then pressing up/down to move selection$$$$$$FIXED$$$Thunderbird now attempts to reconnect on a new connection after SMTP 4xx errors$$$$$$FIXED$$$HTML FileLink attachments used the wrong encoding$$$$$$FIXED$$$Security fixes - https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#thunderbird115.6
Mozilla Thunderbird en-US x64 Version 115.6.0
FIXED$$$Message selection misbehaved after selecting a sub-message in an expanded thread; collapsing the thread; then pressing up/down to move selection$$$$$$FIXED$$$Thunderbird now attempts to reconnect on a new connection after SMTP 4xx errors$$$$$$FIXED$$$HTML FileLink attachments used the wrong encoding$$$$$$FIXED$$$Security fixes - https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#thunderbird115.6
Mozilla Thunderbird en-US x86 Version 115.5.0
FIXES$$$FIXED$$$Initial message was not automatically selected when opened in conversation$$$$$$FIXED$$$Newsgroup users using FQDN identity generated message ID headers with incorrect domain name$$$$$$FIXED$$$Link previews had poor legibility in dark mode$$$$$$FIXED$$$Plasmas task switcher displayed the default icon when running the Thunderbird Flatpak on Wayland$$$$$$FIXED$$$Link to Flatpak manifest was incorrect$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 115.5.0
FIXES$$$FIXED$$$Initial message was not automatically selected when opened in conversation$$$$$$FIXED$$$Newsgroup users using FQDN identity generated message ID headers with incorrect domain name$$$$$$FIXED$$$Link previews had poor legibility in dark mode$$$$$$FIXED$$$Plasmas task switcher displayed the default icon when running the Thunderbird Flatpak on Wayland$$$$$$FIXED$$$Link to Flatpak manifest was incorrect$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.4.2
FIXES$$$FIXED$$$No messages or calendar items were displayed on startup$$$$$$FIXED$$$Toolbar & Folder View widget fixes$$$$$$FIXED$$$Insert image dialog was not properly sized on some localized builds$$$$$$FIXED$$$The unencrypted subject icon was always briefly displayed when replying to a message$$$$$$FIXED$$$RSS feeds with lengthy attachment filenames cut off visible content$$$$$$FIXED$$$RSS feeds with no favicon displayed default icon in the folder color$$$$$$FIXED$$$NNTP messages that were previously downloaded were not displayed if the server went offline$$$$$$FIXED$$$Vcard photos were not imported when using opening the file with Thunderbird$$$$$$FIXED$$$Publishing calendars to invalid URLs did not display a helpful error$$$$$$FIXED$$$Publishing calendar events via authenticated WebDAV failed$$$$$$FIXED$$$Converting a message to an event failed when the message pane was not displayed$$$$$$FIXED$$$Redirect dialog displayed for WebDAV calendars was too small$$$$$$FIXED$$$Visual and Theme improvements
Mozilla Thunderbird en-US x64 Version 115.4.2
FIXES$$$FIXED$$$No messages or calendar items were displayed on startup$$$$$$FIXED$$$Toolbar & Folder View widget fixes$$$$$$FIXED$$$Insert image dialog was not properly sized on some localized builds$$$$$$FIXED$$$The unencrypted subject icon was always briefly displayed when replying to a message$$$$$$FIXED$$$RSS feeds with lengthy attachment filenames cut off visible content$$$$$$FIXED$$$RSS feeds with no favicon displayed default icon in the folder color$$$$$$FIXED$$$NNTP messages that were previously downloaded were not displayed if the server went offline$$$$$$FIXED$$$Vcard photos were not imported when using opening the file with Thunderbird$$$$$$FIXED$$$Publishing calendars to invalid URLs did not display a helpful error$$$$$$FIXED$$$Publishing calendar events via authenticated WebDAV failed$$$$$$FIXED$$$Converting a message to an event failed when the message pane was not displayed$$$$$$FIXED$$$Redirect dialog displayed for WebDAV calendars was too small$$$$$$FIXED$$$Visual and Theme improvement
Mozilla Thunderbird en-US x86 Version 115.2.2
FIXES$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 115.2.2
FIXES$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 102.15.1
FIXES$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 102.15.1
FIXES$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 102.15.0
Thunderbird 102.15.0; is the final release of Thunderbird 102.$$$FIXES$$$FIXED$$$Old OpenPGP secret keys could not be used to decrypt messages under certain circumstances$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 102.15.0
Thunderbird 102.15.0; is the final release of Thunderbird 102.$$$$$$FIXES$$$FIXED$$$Old OpenPGP secret keys could not be used to decrypt messages under certain circumstances$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.2.0
$$$WHAT’S NEW$$$NEW$$$Thunderbird MSIX packages are now published on archive.mozilla.org$$$$$$CHANGES$$$CHANGED$$$Size; Unread; and Total columns are now right-aligned$$$$$$CHANGED$$$Newsgroup names in message list header are now abbreviated$$$$$$FIXES$$$FIXED$$$Message compose window did not apply theme colors to menus$$$$$$FIXED$$$Reading the second new message in a folder cleared the unread indicator of all other new messages$$$$$$FIXED$$$Displayed counts of unread or flagged messages could become out-of-sync$$$$$$FIXED$$$Deleting a message from the context menu with messages sorted in chronological order and smooth scroll enabled caused message list to scroll to top$$$$$$FIXED$$$Repeatedly switching accounts in Subscribe dialog caused tree view to stop updating$$$$$$FIXED$$$Ignore thread caused message cards to display incorrectly in message list$$$$$$FIXED$$$Creating tags from unified toolbar failed$$$$$$FIXED$$$Cross-folder navigation using F and N did not work$$$$$$FIXED$$$Account Manager did not resize to fit content; causing Close button to become hidden outside bounds of dialog when too many accounts were listed$$$$$$FIXED$$$Remote content exceptions could not be added in Settings$$$$$$FIXED$$$Newsgroup list file did not get updated after adding a new NNTP server$$$$$$FIXED$$$Download all headers option in NNTP Download Headers dialog was incorrectly selected by default$$$$$$FIXED$$$Convert to event/task was missing from mail context menu$$$$$$FIXED$$$Events and tasks were not shown in some cases despite being present on remote server$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 115.2.0
WHAT’S NEW$$$NEW$$$Thunderbird MSIX packages are now published on archive.mozilla.org$$$$$$CHANGES$$$CHANGED$$$Size; Unread; and Total columns are now right-aligned$$$$$$CHANGED$$$Newsgroup names in message list header are now abbreviated$$$$$$FIXES$$$FIXED$$$Message compose window did not apply theme colors to menus$$$$$$FIXED$$$Reading the second new message in a folder cleared the unread indicator of all other new messages$$$$$$FIXED$$$Displayed counts of unread or flagged messages could become out-of-sync$$$$$$FIXED$$$Deleting a message from the context menu with messages sorted in chronological order and smooth scroll enabled caused message list to scroll to top$$$$$$FIXED$$$Repeatedly switching accounts in Subscribe dialog caused tree view to stop updating$$$$$$FIXED$$$Ignore thread caused message cards to display incorrectly in message list$$$$$$FIXED$$$Creating tags from unified toolbar failed$$$$$$FIXED$$$Cross-folder navigation using F and N did not work$$$$$$FIXED$$$Account Manager did not resize to fit content; causing Close button to become hidden outside bounds of dialog when too many accounts were listed$$$$$$FIXED$$$Remote content exceptions could not be added in Settings$$$$$$FIXED$$$Newsgroup list file did not get updated after adding a new NNTP server$$$$$$FIXED$$$Download all headers option in NNTP Download Headers dialog was incorrectly selected by default$$$$$$FIXED$$$Convert to event/task was missing from mail context menu$$$$$$FIXED$$$Events and tasks were not shown in some cases despite being present on remote server$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 115.1.1
FIXES$$$FIXED$$$Some HTML emails printed headers on first page and message on subsequent pages$$$$$$FIXED$$$Deleting messages from message list sometimes scrolled list to bottom; selecting bottommost message$$$$$$FIXED$$$Width of icon columns (like Junk or Starred) in message list did not adjust when UI density was changed$$$$$$FIXED$$$Old OpenPGP secret keys could not be used to decrypt messages under certain circumstances$$$$$$FIXED$$$When multiple folder modes were active; tab focus navigated through all folder mode options before reaching message list$$$$$$FIXED$$$Unread message count badge was not displayed on parent folders of subfolder containing unread messages$$$$$$FIXED$$$Undo archive (via Ctrl-Z) did not un-archive previously archived messages$$$$$$FIXED$$$New button dropdown menu in Message Filters dialog could not be opened via keyboard navigation$$$$$$FIXED$$$Show New Mail Alert for input field in Customize New Mail Alert dialog had zero width when using certain language packs$$$$$$FIXED$$$Account Wizard dialog was too narrow when adding a news server; partially hiding confirmation buttons$$$$$$FIXED$$$Link Properties and Image Properties dialogs in the composer were too wide$$$$$$FIXED$$$Thunderbird version number and details in About dialog were not automatically read by screen readers when first opening dialog$$$$$$FIXED$$$Flatpak improvements and bug fixes$$$$$$FIXED$$$Various visual and UX improvements
Mozilla Thunderbird en-US x64 Version 115.1.1
FIXES$$$FIXED$$$Some HTML emails printed headers on first page and message on subsequent pages$$$$$$FIXED$$$Deleting messages from message list sometimes scrolled list to bottom; selecting bottommost message$$$$$$FIXED$$$Width of icon columns (like Junk or Starred) in message list did not adjust when UI density was changed$$$$$$FIXED$$$Old OpenPGP secret keys could not be used to decrypt messages under certain circumstances$$$$$$FIXED$$$When multiple folder modes were active; tab focus navigated through all folder mode options before reaching message list$$$$$$FIXED$$$Unread message count badge was not displayed on parent folders of subfolder containing unread messages$$$$$$FIXED$$$Undo archive (via Ctrl-Z) did not un-archive previously archived messages$$$$$$FIXED$$$New button dropdown menu in Message Filters dialog could not be opened via keyboard navigation$$$$$$FIXED$$$Show New Mail Alert for input field in Customize New Mail Alert dialog had zero width when using certain language packs$$$$$$FIXED$$$Account Wizard dialog was too narrow when adding a news server; partially hiding confirmation buttons$$$$$$FIXED$$$Link Properties and Image Properties dialogs in the composer were too wide$$$$$$FIXED$$$Thunderbird version number and details in About dialog were not automatically read by screen readers when first opening dialog$$$$$$FIXED$$$Flatpak improvements and bug fixes$$$$$$FIXED$$$Various visual and UX improvements
Mozilla Thunderbird en-US x86 Version 102.12.0
FIXES$$$FIXED$$$Searching the directory for recipients certificates popup could block compose window when S/MIME reminder was enabled and using an LDAP address book$$$$$$FIXED$$$Some elements still used animations with prefers-reduced-motion set$$$$$$FIXED$$$Visual and theme improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 102.12.0
FIXES$$$FIXED$$$Searching the directory for recipients certificates popup could block compose window when S/MIME reminder was enabled and using an LDAP address book$$$$$$FIXED$$$Some elements still used animations with prefers-reduced-motion set$$$$$$FIXED$$$Visual and theme improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 102.11.0
FIXED$$$During Account Setup; the Checking password... message was not removed after a failure$$$$$$FIXED$$$Miscellaneous UI fixes$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 102.11.0
FIXED$$$During Account Setup; the Checking password... message was not removed after a failure$$$$$$FIXED$$$Miscellaneous UI fixes$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 102.10.1
FIXED$$$Messages with missing or corrupt From: header did not display message header buttons$$$$$$FIXED$$$Composer repeatedly prompted for S/MIME smartcard signing/encryption password$$$$$$FIXED$$$Address Book integration did not work with macOS 11.4 Bug Sur$$$$$$FIXED$$$Mexico City DST fix in Thunderbird 102.10.0 (bug 1826146) was incomplete
Mozilla Thunderbird en-US x64 Version 102.10.1
FIXES$$$FIXED$$$Messages with missing or corrupt From: header did not display message header buttons$$$$$$FIXED$$$Composer repeatedly prompted for S/MIME smartcard signing/encryption password$$$$$$FIXED$$$Address Book integration did not work with macOS 11.4 Bug Sur$$$$$$FIXED$$$Mexico City DST fix in Thunderbird 102.10.0 (bug 1826146) was incomplete
Mozilla Thunderbird en-US x86 Version 102.9.1
FIXED$$$Thunderbird was unable to open file URLs from command line (URLs beginning with file://)$$$$$$FIXED$$$Source strings for localized builds not uploaded to FTP as expected$$$$$$FIXED$$$Visual and theme improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x64 Version 102.9.1
FIXED$$$Thunderbird was unable to open file URLs from command line (URLs beginning with file://)$$$$$$FIXED$$$Source strings for localized builds not uploaded to FTP as expected$$$$$$FIXED$$$Visual and theme improvements$$$$$$FIXED$$$Security fixes
Mozilla Thunderbird en-US x86 Version 102.9.0
FIXES$$$FIXED$$$Notification about a senders changed OpenPGP key was not immediately visible$$$$$$FIXED$$$TLS Certificate Override dialog did not appear when retrieving messages via IMAP using Get Messages context menu$$$$$$FIXED$$$Spellcheck dictionaries were missing from localized Thunderbird builds that should have included them$$$$$$FIXED$$$Tooltips for Show/Hide calendar toggle did not display$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x64 Version 102.9.0
FIXES$$$FIXED$$$Notification about a senders changed OpenPGP key was not immediately visible$$$$$$FIXED$$$TLS Certificate Override dialog did not appear when retrieving messages via IMAP using Get Messages context menu$$$$$$FIXED$$$Spellcheck dictionaries were missing from localized Thunderbird builds that should have included them$$$$$$FIXED$$$Tooltips for Show/Hide calendar toggle did not display$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x86 Version 102.8.0
$$$WHAT’S NEW$$$NEW$$$The Troubleshooting Information page now displays version of the OpenPGP backend library used by Thunderbird.$$$$$$NEW$$$Added option to build RNP library with OpenSSL backend (use --with-librnp-backend=openssl configure option)$$$$$$FIXES$$$FIXED$$$Get Messages did not retrieve messages from Gmail accounts using a local folder as a deferred inbox$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Various security fixes$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$Source strings for localized builds not uploaded to FTP as expected
Mozilla Thunderbird en-US x64 Version 102.8.0
$$$WHAT’S NEW$$$NEW$$$The Troubleshooting Information page now displays version of the OpenPGP backend library used by Thunderbird.$$$$$$NEW$$$Added option to build RNP library with OpenSSL backend (use --with-librnp-backend=openssl configure option)$$$$$$FIXES$$$FIXED$$$Get Messages did not retrieve messages from Gmail accounts using a local folder as a deferred inbox$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Various security fixes$$$$$$KNOWN ISSUES$$$UNRESOLVED$$$Source strings for localized builds not uploaded to FTP as expected
Mozilla Thunderbird en-US x86 Version 102.6.1
FIXES$$$FIXED$$$Remote content did not load in user-defined signatures$$$$$$FIXED$$$Addons that added new action buttons were not shown for addon upgrades; requiring removal and reinstall$$$$$$FIXED$$$Various stability improvements$$$$$$FIXED$$$Security fix
Mozilla Thunderbird en-US x64 Version 102.6.1
FIXES$$$FIXED$$$Remote content did not load in user-defined signatures$$$$$$FIXED$$$Addons that added new action buttons were not shown for addon upgrades; requiring removal and reinstall$$$$$$FIXED$$$Various stability improvements$$$$$$FIXED$$$Security fix
Mozilla Thunderbird en-US x86 Version 102.6.0
FIXES$$$FIXED$$$Importing secret OpenPGP keys failed when public key with public subkey was already present$$$$$$FIXED$$$Message index files were incorrectly deleted when too many folders were opened$$$$$$FIXED$$$Thunderbird sometimes incorrectly formatted synced vCards$$$$$$FIXED$$$Recurring events did not display past a certain number of repetitions$$$$$$FIXED$$$Cookies deleted from the Show Cookies dialog were not actually deleted$$$$$$FIXED$$$Paused RSS feeds did not actually pause updates$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x64 Version 102.6.0
FIXES$$$FIXED$$$Importing secret OpenPGP keys failed when public key with public subkey was already present$$$$$$FIXED$$$Message index files were incorrectly deleted when too many folders were opened$$$$$$FIXED$$$Thunderbird sometimes incorrectly formatted synced vCards$$$$$$FIXED$$$Recurring events did not display past a certain number of repetitions$$$$$$FIXED$$$Cookies deleted from the Show Cookies dialog were not actually deleted$$$$$$FIXED$$$Paused RSS feeds did not actually pause updates$$$$$$FIXED$$$Various visual and UX improvements$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x86 Version 102.5.1
FIXED$$$Copy to again menu item was not present after copying message to folder with Unicode name on Unicode-enabled IMAP server$$$$$$FIXED$$$Calendar date picker was displayed behind Send Later window$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x64 Version 102.5.1
FIXED$$$Copy to again menu item was not present after copying message to folder with Unicode name on Unicode-enabled IMAP server$$$$$$FIXED$$$Calendar date picker was displayed behind Send Later window$$$$$$FIXED$$$Various security fixes
Mozilla Thunderbird en-US x86 Version 102.4.1
Refer the link for details$$$https://www.thunderbird.net/en-US/thunderbird/102.4.1/releasenotes/
Mozilla Thunderbird en-US x64 Version 102.4.1
For details refer: https://www.thunderbird.net/en-US/thunderbird/102.4.1/releasenotes/
Mozilla Thunderbird en-US x86 Version 102.3.1
Refer the link for details$$$https://www.thunderbird.net/en-US/thunderbird/102.3.1/releasenotes/
Mozilla Thunderbird en-US x64 Version 102.3.1
For details refer: https://www.thunderbird.net/en-US/thunderbird/102.3.1/releasenotes/
Mozilla Thunderbird en-US x64 Version 102.1.2.0
For details refer: https://www.thunderbird.net/en-US/thunderbird/102.1.2/releasenotes/
