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AfterDawn > Software downloads > Network > Email > Mozilla Thunderbird > Version history

Version history for Mozilla Thunderbird

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Changes for v60.0 - v60.2.1

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

Changes for v52.3.0 - v52.4.0

NEW
In Thunderbird 52 a new behavior was introduced for replies to mailing list posts: "When replying to a mailing list, reply will be sent to address in From header ignoring Reply-to header". A new preference mail.override_list_reply_to allows to restore the previous behavior.
FIXED
Under certain circumstances (image attachment and non-image attachment), attached images were shown truncated in messages stored in IMAP folders not synchronised for offline use.
FIXED
IMAP UIDs > 0x7FFFFFFF not handled properly
FIXED
Various security fixes

Changes for v45.3.0 - v45.4.0

FIXED
Display name was truncated if no separating space before email address.
FIXED
Recipient addresses were shown in red despite being inserted from the address book in some circumstances.
FIXED
Additional spaces were inserted when drafts were edited.
FIXED
Mail saved as template copied In-Reply-To and References from original email.
FIXED
Threading broken when editing message draft, due to loss of Message-ID
FIXED
"Apply columns to..." did not honor special folders

Changes for v45.1.1 - v45.2.0

Invitations to events could not be printed.
FIXED
Dragging and dropping of contacts from the contact list onto an addressbook while All Addressbooks is selected moved only one contact
FIXED
Falsely reported not enough disk space during compacting
FIXED
Links were not always detected properly in the message body (terminated early on "|", some long links not detected at all)

Changes for v38.2.0 - v38.3.0

NEW
Saved files tab now implements Search field and Clear button.
FIXED
(Right-)Clicking on a newsgroup now allows directly composing a message again
FIXED
Importing to the address book from CSV now works with international characters
FIXED
Thunderbird no longer crashes when executing filter rules when using maildir
FIXED
When using the maildir storage format, the INBOX folder is no longer deleted
FIXED
Emails with long References headers are now decoded correctly
FIXED
Checking for new messages correctly works after hibernation again
FIXED
Chat entries are no longer sometimes lost in global database at shutdown.

Changes for v38.0 Beta 5 - v38.0 Beta 6

What’s New
NEW: Filter sent messages (bug 11039)
NEW: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Support Yahoo! Messenger chat protocol (bug 955574)
NEW: Add reading position marker line to conversations (bug 760762)
NEW: The editor for twitter should show inputtable character count (bug 736002)
NEW: GMail supports OAuth2 authentication, removing the need to manually select "allow less secure applications" in Google options for the account. (bug 849540)
CHANGED: Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
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: 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.

Changes for v38.0 Beta 4 - v38.0 Beta 5

What’s New
NEW: Filter sent messages (bug 11039)
NEW: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Support Yahoo! Messenger chat protocol (bug 955574)
NEW: OAuth2 can be selected for gmail accounts in advanced and manual account configuration (bug 849540)
NEW: Add reading position marker line to conversations (bug 760762)
NEW: The editor for twitter should show inputtable character count (bug 736002)
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)
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)
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: Addons compatibility update checks are not completed, so existing addon compatibilities may not be accurate
UNRESOLVED: Answering mail with sendername containing encoded special chars and comma creates two "To"-entries (bug 1088975)

Changes for v38.0 Beta 3 - v38.0 Beta 4

What’s New
NEW: Filter sent messages (bug 11039)
NEW: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)
NEW: Allow file-per-message (maildir) local message storage (bug 845952)
NEW: Support Yahoo! Messenger chat protocol (bug 955574)
NEW: OAuth2 can be selected for gmail accounts in advanced and manual account configuration (bug 849540)
NEW: Add reading position marker line to conversations (bug 760762)
NEW: The editor for twitter should show inputtable character count (bug 736002)
CHANGED: Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
CHANGED: Make OpenSearch queries open in the user's default browser (bug 1120777)
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)
CHANGED: Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)
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: 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: Various improvements when using IRC on moznet (bug 1083768 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)
FIXED: Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)
FIXED: Significantly improve XMPP support (bug 1085022 and others)
FIXED: Automatically rejoin multi-user conversations on reconnect for XMPP (bug 1014472)
Known Issues
UNRESOLVED: Addons compatibility update checks are not completed, so existing addon compatibilities may not be accurate
UNRESOLVED: Answering mail with sendername containing encoded special chars and comma creates two "To"-entries (bug 1088975)

Changes for v38.0 Beta 2 - v38.0 Beta 3

What’s New
New: Filter sent messages (bug 11039)
New: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)
New: Allow file-per-message (maildir) local message storage (bug 845952)
New: Support Yahoo! Messenger chat protocol (bug 955574)
New: OAuth2 can be selected for gmail accounts in advanced and manual account configuration (bug 849540)
New: Add reading position marker line to conversations (bug 760762)
New: The editor for twitter should show inputtable character count (bug 736002)
Changed: Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
Changed: Make OpenSearch queries open in the user's default browser (bug 1120777)
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)
Changed: Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)
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: 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: Various improvements when using IRC on moznet (bug 1083768 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)
Fixed: Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)
Fixed: Significantly improve XMPP support (bug 1085022 and others)
Fixed: Automatically rejoin multi-user conversations on reconnect for XMPP (bug 1014472)
Known Issues
unresolved: Addons compatibility update checks are not completed, so existing addon compatibilities may not be accurate
unresolved: Answering mail with sendername containing encoded special chars and comma creates two "To"-entries (bug 1088975)

Changes for v38.0 Beta 1 - v38.0 Beta 2

What’s New
New: Filter sent messages (bug 11039)
New: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)
New: Allow file-per-message (maildir) local message storage (bug 845952)
New: Support Yahoo! Messenger chat protocol (bug 955574)
New: Automatically rejoin multi-user conversations on reconnect (bug 1014472)
New: OAuth2 can be selected for gmail accounts in advanced account configuration (bug 849540)
Changed: Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
Changed: Make OpenSearch queries open in the user's default browser (bug 1120777)
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)
Changed: Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)
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: 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: Various improvements when using IRC on moznet (bug 1083768 and others)
Fixed: Significantly improvemented 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)
Fixed: Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)
Known Issues
unresolved: Addons compatibility update checks are not completed, so existing addon compatibilities may not be accurate
unresolved: Email address missing from "From" field on emails if the identityName pref was set (bug 1152045)

Changes for v37.0 Beta 1 - v38.0 Beta 1

What’s New
New: Filter sent messages (bug 11039)
New: Support Internationalized domain name URLs for RSS feeds (Bug 1018589)
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: Add a Learn more link to the support page in feeds subscribe dialog (bug 1053782)
New: Allow file-per-message (maildir) local message storage (bug 845952)
New: Support Yahoo! Messenger chat protocol (bug 955574)
New: Automatically rejoin multi-user conversations on reconnect (bug 1014472)
Changed: Thunderbird will no longer use SHA-1 to sign messages (bug 1018259)
Changed: Make OpenSearch queries open in the user's default browser (bug 1120777)
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)
Changed: Default to using SSL for XMPP and IRC. This might cause issues for self-signed certificates (bug 1122567, bug 1122666)
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: 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: Various improvements when using IRC on moznet (bug 1083768 and others)
Fixed: Significantly improvemented 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)
Fixed: Addressing autocomplete widget: Typed text in red despite results/matches found if suggestions change by last input (bug 1042561)
Known Issues
unresolved: Bug 1140884 - An error occurred while sending mail garbled (bug 1140884)
unresolved: Bug 1150021 - About Thunderbird dialog broken for RTL locales (bug 1150021)
unresolved: Addons compatibility update checks are not completed, so existing addon compatibilities may not be accurate

Changes for v31.5.0 - v31.6.0

Fixed: Security fixes can be found here:
Fixed in Thunderbird 31.6
2015-40 Same-origin bypass through anchor navigation
2015-37 CORS requests should not follow 30x redirections after preflight
2015-33 resource:// documents can load privileged pages
2015-31 Use-after-free when using the Fluendo MP3 GStreamer plugin
2015-30 Miscellaneous memory safety hazards (rv:37.0 / rv:31.6)

Changes for v31.4.0 - v31.5.0

Fixed: Security fixes can be found here:
Fixed in Thunderbird 31.5
2015-24 Reading of local files through manipulation of form autocomplete
2015-19 Out-of-bounds read and write while rendering SVG content
2015-16 Use-after-free in IndexedDB
2015-12 Invoking Mozilla updater will load locally stored DLL files
2015-11 Miscellaneous memory safety hazards (rv:36.0 / rv:31.5)

Changes for v31.3.0 - v31.4.0

What’s New
Fixed: The previous issues with jp mac builds have now been fixed, and Thunderbird will no longer need to be run in 32-bit mode.
Fixed: Security fixes can be found here
Fixed: Installing extensions within Thunderbird no longer requires download and installing as a file (Bug 1081190)
Fixed: Autocomplete suggestion sort order was adjusted to prioritize entries where the search string matches the beginning of a word (Bug 970456)

Changes for v31.2.0 - v31.3.0

What’s New
Fixed: Fixes an issue where using LDAP autocomplete could end up with blank entries in the compose addressing list (Bug 1045753)
Fixed: Fixes an issue where IRC participants were not removed from the display on leaving a channel.
Fixed: Fixes a regression where Thunderbird wasn't respecting the skip integration option on the default client dialog.
Fixed: Security fixes can be found here

Changes for v31.1.2 - v31.2.0

What’s New
FIXED: Fixed a case where having a contact and card in an address book with the same name could send to the mailing list (Bug 1008718)
FIXED: Invalid certificate issue with mozilla::pkix (see bug 1042889)
FIXED: Importing an RSA private key fails if p < q (see bug 1049435)
Fixed in Thunderbird 31.2
MFSA 2014-81 Inconsistent video sharing within iframe
MFSA 2014-79 Use-after-free interacting with text directionality
MFSA 2014-77 Out-of-bounds write with WebM video
MFSA 2014-76 Web Audio memory corruption issues with custom waveforms
MFSA 2014-75 Buffer overflow during CSS manipulation
MFSA 2014-74 Miscellaneous memory safety hazards (rv:33.0 / rv:31.2)

Changes for v31.1.0 - v31.1.1

What’s New
FIXED: Fixed an issue where mailing lists with spaces in their names couldn't be autocompleted (Bug 1060901)
FIXED: Fixed an occasional startup crash (Bug 1005336)

Changes for v31.0 Beta 1 - v31.0 Beta 2

FIXED: Various fixes and performance improvements

Changes for v24.5.0 - v24.6.0

MFSA 2014-52 Use-after-free with SMIL Animation Controller
MFSA 2014-49 Use-after-free and out of bounds issues found using Address Sanitizer
MFSA 2014-48 Miscellaneous memory safety hazards (rv:30.0 / rv:24.6)

Changes for v24.1.1 - v24.2.0

FIXED Security fixes can be found here
FIXED Fixed an issue where long messages with multiple signatures could end up unreadable (bug 929006)
FIXED Fixed an issue where editing account settings was not possible in some non-standard configurations of local folder set-ups (bug 921371)

Changes for v24.1.0 - v24.1.1

Security fixes

Changes for v24.0.1 - v24.1.0

FIXED: Fixed an issue where signatures were shown in too lighter grey making them difficult to read (bug 917906)
FIXED: Fixed an issue where Auto CC for reply might not work if the cc address is the same as the sending address (bug 917231)
FIXED: Security fixes can be found here:
Fixed in Thunderbird 24.1
MFSA 2013-102 Use-after-free in HTML document templates
MFSA 2013-101 Memory corruption in workers
MFSA 2013-100 Miscellaneous use-after-free issues found through ASAN fuzzing
MFSA 2013-98 Use-after-free when updating offline cache
MFSA 2013-97 Writing to cycle collected object during image decoding
MFSA 2013-96 Improperly initialized memory and overflows in some JavaScript functions
MFSA 2013-95 Access violation with XSLT and uninitialized data
MFSA 2013-94 Spoofing addressbar though SELECT element
MFSA 2013-93 Miscellaneous memory safety hazards (rv:25.0 / rv:24.1 / rv:17.0.10)

Changes for v24.0 - v24.0.1

Fixed an issue where inline spell check in the compose window could stop working
Fixed an occasional crash in the subscribe dialog for newsgroups
Fixed some color contrast issues

Changes for v17.0.8 - v24.0

NEW Message threads can now be ignored or watched
NEW Emails can now be sent to IDN based email addresses
NEW Zoom functionality is now available in the compose window
CHANGED In the Compose window, ctrl/cmd + and ctrl/cmd - now change the zoom setting rather than the font size
CHANGED In Twitter, replying to a tweet now replies to all users, just like on the Twitter website
FIXED Interactions in the filter list dialogs have been improved
FIXED In Chat user nicknames are now highlighted when mentioned
FIXED In IRC, long messages will now be sent in multiple parts instead of being cut off
FIXED Various security fixes

Changes for v23.0 Beta 1 - v24.0 Beta 1

What’s New
FIXED: Various fixes and performance improvements
Known Issues
Unresolved: Thunderbird 24.0b1 on Windows is only available in US English. This will be resolved in the next beta update.

Changes for v17.0.7 - v17.0.8

MFSA 2013-75 Local Java applets may read contents of local file system
MFSA 2013-73 Same-origin bypass with web workers and XMLHttpRequest
MFSA 2013-72 Wrong principal used for validating URI for some Javascript components
MFSA 2013-71 Further Privilege escalation through Mozilla Updater
MFSA 2013-69 CRMF requests allow for code execution and XSS attacks
MFSA 2013-68 Document URI misrepresentation and masquerading
MFSA 2013-66 Buffer overflow in Mozilla Maintenance Service and Mozilla Updater
MFSA 2013-63 Miscellaneous memory safety hazards (rv:23.0 / rv:17.0.8)

Changes for v17.0.6 - v17.0.7

MFSA 2013-59 XrayWrappers can be bypassed to run user defined methods in a privileged context
MFSA 2013-56 PreserveWrapper has inconsistent behavior
MFSA 2013-55 SVG filters can lead to information disclosure
MFSA 2013-54 Data in the body of XHR HEAD requests leads to CSRF attacks
MFSA 2013-53 Execution of unmapped memory through onreadystatechange event
MFSA 2013-51 Privileged content access and execution via XBL
MFSA 2013-50 Memory corruption found using Address Sanitizer
MFSA 2013-49 Miscellaneous memory safety hazards (rv:22.0 / rv:17.0.7)

Changes for v17.0.5 - v17.0.6

FIXED Security fixes can be found here
FIXED Thunderbird now supports the Twitter API version 1.1 ahead of Twitter closing the 1.0 version (Bug 857049)

Changes for v17.0.4 - v17.0.5

FIXED
Security fixes can be found here
Adjusting font size when composing emails should be easier (Bug 824926)

Changes for v17.0.3 - v17.0.4

Use-after-free in HTML Editor
Security fixes

Changes for v17.0.2 - v17.0.3

Security fixes
Attachments sometimes could not be removed from the composition window using the keyboard, this is now fixed (799451)

Changes for v17.0 - v17.0.2

FIXED: Security fixes can be found here
FIXED: Pressing the 'x' button on Windows now closes only one window rather than the whole application (805185)
FIXED: An issue that caused occasional corruption in local folders after filtering is now fixed (815012)
FIXED: An issue that caused deletion of drafts saved in IMAP folders whilst in offline mode is now fixed (805626)

Changes for v17.0 Beta 1 - v17.0 Beta 2

What’s New
NEW: App Menu Button for new users
NEW: Tabs are now drawn in the title bar
FIXED: RSS feeds can now be viewed in the Wide View Layout (531397)
FIXED: Various fixes and performance improvements
CHANGED: Mac OS X 10.5 is no longer supported

Changes for v16.0.1 - v16.0.2

What’s New
FIXED: 16.0.2: Security Fixes
FIXED: 16.0.2: Fixed an issue where IMAP based accounts could sometimes continuously download emails (803843)
FIXED: 16.0.1: Vulnerability outlined here
NEW: We have now added box.com to the list of online storage services that are available for use with Thunderbird Filelink
NEW: Silent, background updates. Thunderbird will now download and apply updates in the background allowing you to start quickly the next time Thunderbird starts up.
FIXED: No longer supporting MD5 as a hash algorithm in digital signatures (650355)
FIXED: Various fixes and performance improvements
FIXED: Various security fixes
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v16.0 - v16.0.1

FIXED: The vulnerability could allow a malicious site to potentially determine which websites users have visited and have access to the URL or URL parameters. At this time we have no indication that this vulnerability is currently being exploited in the wild.

Changes for v15.0.1 - v16.0

We have now added box.com to the list of online storage services that are available for use with Thunderbird Filelink
NEW
Silent, background updates. Thunderbird will now download and apply updates in the background allowing you to start quickly the next time Thunderbird starts up.
FIXED
Various fixes and performance improvements
FIXED
Various security fixes

Changes for v16.0 Beta 2 - v16.0 Beta 3

What’s New
NEW. Box.com support added to Filelink
NEW Windows: Thunderbird is now easier to update with one less prompt (User Account Control)
NEW Thunderbird now supports silent, background updates
FIXED Various fixes and performance improvements
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v15.0 - v15.0.1

FIXED: Stability issues causing crashes when searching emails and forwarding emails (770262, 780908)
FIXED: Find and replace and some other actions in the compose window were not working correctly (787673)

Changes for v14.0 - v15.0 Beta 1

What’s New
NEW. Integration of Chat with unified global search
NEW. Do Not Track option has been added
NEW. New Australis User Interface
NEW. Ubuntu One has been added to the list of online storage providers for Filelink
FIXED. Various fixes and performance improvements
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v14.0 Beta 5 - v14.0

What’s New
FIXED. Various fixes and performance improvements
FIXED. Various security fixes
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you can switch to Classic View, or you may need to disable the Lightning Calendar add-on. In both cases, you'll need to restart Thunderbird (see 531397).

Changes for v14.0 Beta 4 - v14.0 Beta 5

What’s New
NEW. Ubuntu One has been added to the list of online storage providers for Filelink
FIXED. Various fixes and performance improvements
Known Issues
Unresolved. On Mac, there is a big black line around the tabs (bug 763394)
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v14.0 Beta 3 - v14.0 Beta 4

What’s New
NEW. Ubuntu One has been added to the list of online storage providers for Filelink
FIXED. Various fixes and performance improvements
Known Issues
Unresolved. On Mac, there is a big black line around the tabs (bug 763394)
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v13.0 - v13.0.1

YouSendIt no longer expires Filelinks after 1 week
The prompt given when a password had changed sometimes referred to a network error rather than a change of password
Some Linux users may have been unable to start Thunderbird from outside the installation directory
Miscellaneous other stability and display updates

Changes for v12.0.1 - v13.0

Filelink: Upload your files to an online storage service and send links to your friends, avoiding bounce back due to large attachments. We have partnered with YouSendIt to bring this feature, but additional partners will be added in the near future.
NEW
In partnership with Gandi and Hover, you can now sign up for a personalized email address from within Thunderbird. Along with your new email address, Thunderbird will be automatically set up and ready to send and receive messages. We are working with additional suppliers to cover more areas of the world and to provide more options in the future.
FIXED
Various security fixes
CHANGED
The minimum system requirements for Windows are now Windows XP Service Pack 2 or later.

Changes for v13.0 Beta 2 - v13.0 Beta 3

What?s New
NEW. Filelink: Send links rather than attachments and prevent bounce back due to large attachments.
CHANGED. The minimum system requirements for Windows are now Windows XP Service Pack 2 or later.
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v13.0 Beta 1 - v13.0 Beta 2

What?s New
NEW. Filelink: Send links rather than attachments and prevent bounce back due to large attachments.
CHANGED. The minimum system requirements for Windows are now Windows XP Service Pack 2 or later.
Known Issues
Unresolved. On Mac builds, there is a black border around the tabs (Bug 749891/Bug 713852). Fixed in the next beta update of 13.0.
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v12.0 - v12.0.1

Fix various issues relating to new mail notifications and filtering on POP3 based accounts
FIXED
Fixes an occasional startup crash seen in TB 12.0
FIXED
Fixes an issue with corrrupted message bodies when using movemail

Changes for v11.0.1 - v12.0

What?s New
NEW: Global Search results now include message extracts in the results
FIXED: Various improvements to RSS feed subscription and general feed handling
DEVELPER: Thunderbird now supports add-ons that provide different types of local mail storage
Known Issues
Unresolved: If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v12.0 Beta 1 - v12.0 Beta 2

What's New in Thunderbird Beta
Global Search results now include message extracts in the results
Various improvements to RSS feed subscription and general feed handling
and lots of other platform fixes
Bug ID Summary
711173 Fix for UI freeze on feed biff/get new messages; renovate newsblog.js for fun.
718860 Use the "dummy" smart reply button in the message header customization dialog
529933 [Mac] "File" toolbar button shows old folder after bug 491294
711085 Attachment tests are never run as part of mozmilltests.list, and are broken
715793 Port |Bug #715048| to Comm-central.
515858 feed-subscriptions.js: remove/replace (commented out) call to removed GetFolderDatasource()
714265 Encoding not retained in GatherMimeAttachments
696347 Compact Folders throws error message cmd_compactFolder. TypeError: this._resetThreadPane is not a fu?
717402 Permanent orange: TEST-UNEXPECTED-FAIL | test-about-support.js | test-about-support.js::*
670502 Opening account manager (account settings) from compose window fails
713767 Permanent orange | TEST-UNEXPECTED-FAIL | test_imapHighWater.js on win32 | 6 == 11
713768 Permanent orange | TEST-UNEXPECTED-FAIL | test_nsIMsgFolderListenerLocal.js | exception thrown from ?
695256 Switch from PRBool to bool and replace PR_TRUE/PR_FALSE with true/false in comm-central
714042 Stop trying to package MacOS/Contents/Plug-Ins/ since we haven't put anything in there since bug 520?
717883 nsNntpService::WeAreOffline is a redundant function
714556 Port |Bug 644801 - Remove Native uconv from the tree| to comm-central
717376 Port |Bug 715576 - libalerts_s.dylib incorrectly links the static version of spidermonkey (in static?
715488 Mostly-Permanent orange: TEST-UNEXPECTED-FAIL | test-attachment.js | test-attachment.js::test_attach?
491843 IPv6 address literal is not usable as server name
721249 Tab-bar buttons are slightly too small
633679 Quick filter button/menuitem shouldn't be invisible when disabled
228949 marking as junk with "delete mail marked as junk" set will undelete deleted mail
716378 Port |Bug 655439 - Use $(LIBXUL_DIST)/bin/xpcshell instead of $(DIST)/bin/xpcshell| to comm-central
391004 "Open Browser with Message-ID" should be removed from References' and Message-IDs' context menu for ?
716381 Port |Bug 673461 - ANGLE needs to stop automagically turning itself off in configure if the DirectX ?
490749 File/New/Saved Search produces exception, if no account/no folder is selected at folder pane (Error:?
717225 Figure out why folderTree.json is getting corrupted, and improve stability during writing
712035 Feed Subscribe dialog should respect user location preference.
715495 Inconsistency in styling of buttons in tabs-toolbar
561517 Exception setting up account
719037 Most mail filtered into wrong folder (into the folder of the filter that matched the first message)
707443 missing accesskey for "Recently Closed tabs" menu item
713852 Fix strange tab appearance due to change in border-image behaviour
717182 Permanent orange on Windows | TEST-UNEXPECTED-FAIL | test_largeOfflineStore.js (NS_ERROR_FILE_NO_DEV?
730239 Account provisionner: String change
735108 Thick black border around tabs
526998 Implement F2 keyboard shortcut for renaming focused attachments when composing (on Windows and Unix)
61831 bloat / duplicated code: ConvertBufToPlainText() in nsMsgCompUtils.cpp and nsMessenger.cpp
713611 Thunderbird Daily starting from 20111225 messed-up some messages (showing their source in the previe?
720524 use PRInt32 for variable containing return value of FindChar in nsMsgDBFolder.cpp
713873 crash in nsMsgDatabase::SetSummaryValid if feed db out of date
715922 pop3 move mail filters with quarantining turned off get the resulting message size too big by two by?
715924 pop3 move mail filters not truncating inbox correctly
596885 [UI] Move focus to newly created filter; select previous available filter after deletion
714390 Folder Location and Mail Views items are cut off in the customize toolbar dialog
714391 Text on disabled toolbar buttons in the menubar doesn't look disabled
721317 Port work to use Quirks mode on mac when hardware acceleration is enabled
593321 Opening saved .EML with empty subject has wrong window title
307629 When importing an OPML file that only contains feeds that are already subscribed then error message ?
721071 Permanent orange: TEST-UNEXPECTED-FAIL | test-eml-subject.js | test-eml-subject.js::test_eml_normal_?
564656 "Warning: package error or possible missing or unnecessary file: ....app/Contents/Plug-Ins/ (package?
718514 Sending emails to newsgroups makes me crash [@ nsMsgLocalMailFolder::WriteStartOfNewMessage]
717493 Port |Bug 717491 - "Warning: package error or possible missing or unnecessary file: bin/components/p?
717240 Remove incomplete add/edit image map code from editor
715961 Attachment events in compose window need to be tested
707517 Port |Bug 603574 - [Windows VC++] --disable-profile-guided-optimization is ignored| to comm-central
716224 Port bug 643167 and bug 707512 for better pymake support
346306 Instructions in account wizard not platform dependent
704707 don't need event target (thread) when running imap urls
518597 [Faceted Search] GLODA search results should contain matched message fragment
723910 Account Provisioner fails to close order form tab and report success
720328 Update LDAP c-sdk to LDAPCSDK_6_0_7D_RTM
715210 Remove some WINCE leftovers in comm-central
715212 Customize toolbar dialog buttons are strangely tall
713683 crash at mail startup [@ nsParseNewMailState::MoveIncorporatedMessage]
402392 Support other message storage formats
380636 ldap addressbook book results are not sorted when autocompleting is in action
705504 Ensure feeds are deleted cleanly and completely.
720354 Drop unused MSG_FASTER_URI_PARSING code
713958 msgOffset for copied local messages not set correctly
714983 avoid exceptions in file-utils.js when dismissing file picker dialog
714536 Port |Bug 698630 - Remove --disable-smil build option and "#ifdef MOZ_SMIL" wrappers| to comm-centra?
707539 Port |Bug 639754 - Remove MOZ_IPC checks since IPC is always built now| to comm-central
732798 Make sure feed sync (bug 705504) is more robust and handles edge cases without UI loss
713974 function does not always return a value JS warnings in chrome://messenger/content/accountcreation/
389650 "Unable to save your message as a draft" and "Assembling mail information" when replying to forward?

Changes for v11.0 - v11.0.1

What?s New
FIXED. Fixes an issue that may cause hangs when handling IMAP mail (bug 733731)
FIXED. Fixes an issue that may cause filters that move mail to specific folders to be erronously changed (bug 735940)
Known Issues
Unresolved. If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (see 531397)

Changes for v10.0.2 - v11.0

New user interface with Tabs above the main menu bar to facilitate navigation and make it more contextual
FIXED
Thunderbird notifications may not work properly with Growl 1.3 or later (691662)
FIXED
Fixes a crash seen during importing of Microsoft Outlook profiles (723105)

Changes for v11.0 Beta 3 - v11.0 Beta 4

New user interface with Tabs above the main menu bar to facilitate navigation and make it more contextual,
and several other platform fixes

Changes for v11.0 Beta 2 - v11.0 Beta 3

Tabs are now shown above the toolbar
New wizard to sign up for new accounts
More trust options added to junk settings (Bogofilter, DSPAM, POPFile)
and several other platform fixes

Changes for v11.0 Beta 1 - v11.0 Beta 2

Tabs are now shown above the toolbar
New wizard to sign up for new accounts
More trust options added to junk settings (Bogofilter, DSPAM, POPFile)
and several other platform fixes

Changes for v10.0.1 - v10.0.2

Fix a security issue:
Critical: Vulnerability can be used to run attacker code and install software, requiring no user interaction beyond normal browsing.
High: Vulnerability can be used to gather sensitive data from sites in other windows or inject data or code into those sites, requiring no more than normal browsing actions.
Moderate: Vulnerabilities that would otherwise be High or Critical except they only work in uncommon non-default configurations or require the user to perform complicated and/or unlikely steps.
Low: Minor security vulnerabilities such as Denial of Service attacks, minor data leaks, or spoofs. (Undetectable spoofs of SSL indicia would have "High" impact because those are generally used to steal sensitive data intended for other sites.)

Changes for v10.0 - v10.0.1

Several fixes to improve stability.
Fix a security issue, see the Security Advisory.

Changes for v9.0.1 - v10.0

New ability to search the Web
Improvements to searching email
Several fixes when drafting email
and several other platform fixes

Changes for v9.0 - v9.0.1

Fixes an issue that stopped users of Windows XP and earlier from running Thunderbird in some cases

Changes for v8.0 - v9.0

Thunderbird is based on the new Mozilla Gecko 6 engine
Several theme improvements for Windows 7
Support for Windows 7 Jump lists
Several fixes when importing email from Microsoft Outlook
Default mail client check now works with newer Linux distributions
Various other user interface fixes and improvements
Fixed several security issues
Numerous platform fixes that improve speed, performance and stability

Changes for v8.0 - v9.0 Beta 4

Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Thunderbird
Better keyboard handling for attachments
Windows users can hide the menu bar (and show it with the "alt" key)
Several user interface fixes and improvements
and numerous other platform fixes

Changes for v8.0 - v9.0 Beta 1

Added an opt-in system for users to send performance data back to Mozilla to improve future versions of Thunderbird
Better keyboard handling for attachments
Windows users can hide the menu bar (and show it with the "alt" key)
Several user interface fixes and improvements
and numerous other platform fixes

Changes for v7.0.1 - v8.0

Thunderbird is based on the new Mozilla Gecko 8 engine
Add-ons installed by third party programs are now disabled by default
New Search and Find Shortcuts
Improved accessibility of the attachment list
Folder switching pane widget removed
Numerous platform fixes to stability
Fixed several security issues

Changes for v7.0 - v7.0.1

Fixed a rare issue where some users could find one or more of their add-ons hidden after a Thunderbird update (see the blog post)

Changes for v6.0.2 - v7.0

Thunderbird is based on the new Mozilla Gecko 7 engine
Several user interface fixes and improvements
Several fixes to attachment handling
Ability to print a summary of selected email messages
Platform improvements to Address Book
Fixed several security issues
Numerous platform fixes that improve speed, performance and stability

Changes for v6.0 - v7.0 Beta 1

Several user interface fixes and improvements
Several fixes to attachment handling
Ability to print a summary of selected email messages
and numerous other platform fixes

Changes for v6.0 - v6.0.1

Thunderbird is based on the new Mozilla Gecko 6 engine
Several theme improvements for Windows 7
Support for Windows 7 Jump lists
Several fixes when importing email from Microsoft Outlook
Default mail client check now works with newer Linux distributions
Various other user interface fixes and improvements
Fixed several security issues
Numerous platform fixes that improve speed, performance and stability

Changes for v6.0 Beta 3 - v6.0

Support for Windows 7 Jump lists
Several fixes when importing email from Microsoft Outlook
Default mail client check now works with newer Linux distributions
Various other user interface fixes and improvements
and numerous other bug fixes

Changes for v5.0 - v6.0 Beta 3

Changes for v5.0 - v6.0 Beta 2

Support for Windows 7 Jump lists
Several fixes when importing email from Microsoft Outlook
Default mail client check now works with newer Linux distributions
Various other user interface fixes and improvements
and numerous other bug fixes

Changes for v3.1.11 - v5.0

More responsive and faster to start up and use
Thunderbird is based on the new Mozilla Gecko 5 engine
New Add-ons Manager
Revised account creation wizard to improve email setup
New Troubleshooting Information page
Tabs can now be reordered and dragged to different windows
Attachment sizes now displayed along with attachments
Plugins can now be loaded in RSS feeds by default
There are several theme fixes for Windows Vista and Windows 7
Support for Mac 32/64 bit Universal builds (Thunderbird no longer supports PowerPC on Mac)
Over 390 platform fixes that improve speed, performance, stability and security

Changes for v5.0 Beta 1 - v5.0 Beta 2

New Addons Manager and extension management API (user interface will be changed before final release)
Tabs can now be reordered and dragged to different windows
Revised account creation wizard, offering improved set-up
Attachment sizes now displayed along with attachments
New troubleshooting information page to aid supporting and diagnosing problems in Thunderbird
Plugins can now be loaded in RSS feeds by default
Various other user interface fixes and improvements
Support for Mac 32/64 bit Universal builds (Thunderbird Beta will no longer support PowerPC on Mac)
and numerous other bug fixes

Changes for v3.1.10 - v5.0 Beta 1

New Addons Manager and extension management API (user interface will be changed before final release)
Tabs can now be reordered and dragged to different windows
Revised account creation wizard, offering improved set-up
Attachment sizes now displayed along with attachments
New troubleshooting information page to aid supporting and diagnosing problems in Thunderbird
Plugins can now be loaded in RSS feeds by default
Various other user interface fixes and improvements
Support for Mac 32/64 bit Universal builds (Thunderbird Beta will no longer support PowerPC on Mac)
and numerous other bug fixes

Changes for v3.1.10 - v3.1.11

Several fixes to improve performance, stability and security, see the Security Advisory.

Changes for v3.1.9 - v3.1.10

Several fixes to improve stability and security
Several fixes to the user interface

Changes for v3.1.8 - v3.1.9

This release prevents a crash after update that is affecting some users.

Changes for v3.1.7 - v3.1.8

Several fixes to improve performance, stability and security, see the Security Advisory.

Changes for v3.1.6 - v3.1.7

Several fixes to improve performance, stability and security, see the Security Advisory.
Several fixes to improve handling of large folder files stored locally.
Several fixes to improve corruption in local copy of IMAP mailboxes.

Changes for v3.1.5 - v3.1.6

A fix for this vulnerability has been released for Firefox and Thunderbird users.

Changes for v3.1.4 - v3.1.5

Several fixes to improve performance, stability and security, see the Security Advisory.
Several fixes to improve the user interface and add-ons experience.

Changes for v3.1.3 - v3.1.4

Thunderbird 3.1.4 is a stability update to Thunderbird 3.1.x

Changes for v3.1.2 - v3.1.3

Several fixes to improve stability and security, see the Security Advisory.
Several fixes to improve stability.
Several fixes to the user interface.

Changes for v3.1.1 - v3.1.2

Several fixes to improve stability.
Several fixes to the user interface.

Changes for v3.1 RC 2 - v3.1

New features include:
Faster Search Results and Quick Filter Toolbar
Faster Search Results
Message indexing is faster and provides users with faster search results.
Quick Filter Toolbar
New Quick Filter Toolbar lets you filter against search terms, tags, starred messages, address book contacts, new emails, and attachments.
User Experience Improvements
New Migration Assistant
The new Migration Assistant gives Thunderbird 2 users a way to choose the new features in Thunderbird 3.1 or to keep their current features and settings.
Saved Files Manager
New Saved Files Manager displays all the files you downloaded from your email to your computer.
Mail Account Setup Wizard
Hundreds of ISP settings have been added to make setting up Thunderbird easier. The Mail Account Setup Wizard matches against a database of email settings from popular mail providers so that you will only need to provide your name, email, and password to set up new mail accounts.
Performance Improvements
Improvements to Stability, Memory, and Password Handling

Changes for v3.1 RC 1 - v3.1 RC 2

Faster Search Results: Message indexing is faster and provides users with faster search results.
Quick Filter Toolbar: New Quick Filter Toolbar lets you filter against search terms, tags, starred messages, address book contacts, new emails, and attachments.

Changes for v3.1 Beta 2 - v3.1 RC 1

New features include:
Faster Search Results and Quick Filter Toolbar
- Faster Search Results
Message indexing is faster and provides users with faster search results.
- Quick Filter Toolbar
New Quick Filter Toolbar lets you filter against search terms, tags, starred messages, address book contacts, new emails, and attachments.
User Experience Improvements
-New Migration Assistant
The new Migration Assistant gives Thunderbird 2 users a way to choose the new features in Thunderbird 3.1 or to keep their current features and settings.
-Saved Files Manager
New Saved Files Manager displays all the files you downloaded from your email to your computer.
-Mail Account Setup Wizard
Hundreds of ISP settings have been added to make setting up Thunderbird easier. The Mail Account Setup Wizard matches against a database of email settings from popular mail providers so that you will only need to provide your name, email, and password to set up new mail accounts.
Performance Improvements
-Improvements to Stability, Memory, and Password Handling

Changes for v3.1 Beta 1 - v3.1 Beta 2

Thunderbird 3.1 Beta 2 is built on top of the Gecko 1.9.2 platform. The main goals of this release is to find out about possible problems caused by the changes in the underlying platform. Notable changes include:
New quick filter toolbar.
New migration assistant.
Improved support for Personas.
Several fixes to improve upgrading from Thunderbird 2.
Several design improvements and corrections to the interface.
Stability and memory improvements.

Changes for v3.0.3 - v3.1 Beta 1

Several fixes to improve upgrading from Thunderbird 2.
Several fixes for auto complete, tabs, and activity manager.
Several design improvements and corrections to the interface.
Stability and memory improvements.

Changes for v3.0.7 - v3.0.8

Several fixes to improve stability.

Changes for v3.0.6 - v3.0.7

Several fixes to improve stability and security, see the Security Advisory.
Several fixes to the user interface.

Changes for v3.0.5 - v3.0.6

Several fixes to improve stability.
Several fixes to the user interface.

Changes for v3.0.4 - v3.0.5

This release improves the performance of indexing messages and accessing profiles stored on a network.
This release also improves the unread email notification on Mac OS X.
Several fixes to the user interface.

Changes for v3.0.3 - v3.0.4

Several fixes to improve stability and security, see the Security Advisory.
Several fixes to the user interface.

Changes for v3.0.2 - v3.0.3

Fix for missing folders or empty folder pane after updating to Thunderbird 3.0.2

Changes for v3.0.1 - v3.0.2

New in Thunderbird 3.0.2:
Several fixes to improve stability and security, see the Security Advisory.
Fixes for Thunderbird 2 users upgrading to Thunderbird 3.
Several fixes to IMAP.
Fixed in Thunderbird 3.0.2
MFSA 2010-03 Use-after-free crash in HTML parser
MFSA 2010-01 Crashes with evidence of memory corruption (rv:1.9.1.8/ 1.9.0.18)

Changes for v3.0 - v3.0.1

Several fixes to improve stability and security
Several fixes to the user interface and attachment handling.
Fixed: 382298 - Forwarded “icon” not shown up in IMAP account (index issue?)
Fixed: 398702 - Thunderbirds File, Edit and View menus are hidden with some Lightning + other extensions combinations – Error: document.getElementById(“show-completed-checkbox”) is null Fichier Source : chrome://calendar/content/calendar-unifinder-todo.js Line : 61
Fixed: 461152 - Move Up/Down in Message Filters doesn’t scroll selected filter into view
Fixed: 472019 - crash [@ nsMsgDBFolder::CallFilterPlugins(nsIMsgWindow*, int*)]
Fixed: 505717 - crash [@ EscapeFromSpaceLine(nsIOutputStream*, char*, char const*)]
Fixed: 512666 - No “forwarded and replied” arrow in Mac OS classic theme
Fixed: 513543 - Crash [@ MimeInlineTextHTML_parse_eof ]
Fixed: 516477 - Dock shows a double count of unread messages in smart folder view
Fixed: 516586 - Account Settings dialog cuts off buttons
Fixed: 517461 - Perfolder unread e-mail count sometimes is wrong on a IMAP server (IMAP server, dovecot, supports CONDSTORE)
Fixed: 521026 - Can’t open\close message pane with F8 button
Fixed: 524125 - Provide makefile target for bloat tests and don’t hard-code path to symbols
Fixed: 524821 - folder pane changes to smart folders if Open in Folder used from Search Messages
Fixed: 524852 - drag and drop message to local file system: file with 0 bytes
Fixed: 524902 - Thunderbird sometimes fetches read/unread flags from the wrong IMAP folder
Fixed: 525513 - crash [@ nsNetscapeProfileMigratorBase::CopyCookies(int)]
Fixed: 526193 - Windows XP, Linux theme inconsistens attachment-deleted, phishing and thread-watched
Fixed: 526918 - [3.0.x only] extraneous space in header pane above the headers in “All Headers” mode
Fixed: 527232 - Unnecessary vertical space between the “Use a master password” checkbox and its description
Fixed: 527731 - Folder pane changes to smart folders if new message is opened from mail notification popup and the account that the message is for, is collapsed
Fixed: 528039 - Reply to List not correctly identifying lists
Fixed: 529824 - tokenization bug breaks global search query strings ending in non-ASCII characters
Fixed: 530035 - xpcshell-tests in /mail/base/ fail on JS strict mode
Fixed: 530044 - Stack overflow on corrupted newsgroup Crash [@ arena_malloc_small ] looping through nsMsgQuickSearchDBView::ListIdsInThreadOrder
Fixed: 530239 - Can’t see that there are more recipients, and can’t expand: “more” cut off by buttons
Fixed: 531505 - Deleting message from a message tab populated by a cross folder saved search does not advance to next message
Fixed: 531794 - crash [@ nsNntpCacheStreamListener::OnDataAvailable(nsIRequest*, nsISupports*, nsIInputStream*, unsigned int, unsigned int)]
Fixed: 531811 - Patcher Configs should point release notes to Mozilla Messaging website rather than mozilla.com
Fixed: 531829 - Archiving messages from multiple years stores them all in one year’s archive
Fixed: 532170 - LDAP address book named with cyrillic/chinese letters doesn’t work
Fixed: 532693 - edit message as new for messages with attachments corrupts heap
Fixed: 532779 - Unable to open Attached Message Part (this bug:Tb3 generates text/html part instead of message/rfc822 for attached mail, bug 533462:Unable to open text attachment by external program)
Fixed: 533170 - No title for message tabs opened from a single folder saved search
Fixed: 533249 - Crash [@ nsImapMailFolder::NotifySearchHit(nsIMsgMailNewsUrl*, char const*) ]
Fixed: 533462 - Impossible to open a .txt and .html attachment with an external editor.
Fixed: 533692 - Kaspersky Anti-Spam Extension causes blank main window on 2.0.0.23 to 3.0 upgrade
Fixed: 533865 - Doing a quick search in a cross-folder saved search clears cached results
Fixed: 534382 - TB stores new fetched e-mails in Local Folders-1 after upgrade from tb2 to tb3(deferred_to_account is deleted, and the account/server number is used by “Smart Folders” of Tb3. Somehow directory for “Smart Folders” becomes “Local Folders-1?)
Fixed: 534422 - Make 1.9.1 client.py pull specific state of extensions by default
Fixed: 534462 - loadStartFolder() asks for master password even if already logged into the software security device
Fixed: 534480 - Make sure Thunderbird doesn’t start shutting down in the middle of Mozmill test-displaying-messages-in-folder-tabs.js and test-quick-search.js
Fixed: 534641 - Selecting Multiple Message Filters to run in other folders
Fixed: 534835 - offline folder size constantly increases using Exchange IMAP (Exchange returns wrong rfc822 size)
Fixed: 535021 - Folder pane: Arrows in header are too subtle
Fixed: 535528 - Mail Compose – address autocomplete causes application freeze (OE Contacts / Windows Address Book related)
Fixed: 535560 - Get Thunderbird 3.0 boxes onto building with gecko 1.9.1.7 and our core sqlite changes
Fixed: 535997 - crash when importing Outlook 2000 address book [@ nsOutlookMail::CreateList]
Fixed: 536042 - Provide a way for folder tree modes to express parent relationships and tell us which folder a message belongs to
Fixed: 536245 - Right side of entire Thunderbird window is cut off if toolbar width exceeds window width
Fixed: 536404 - When composing an S/MIME encrypted email, no padlock is shown at bottom right of window
Fixed: 536552 - Make sure gFolderTreeView.toggleOpenRow works even if a string is passed in as the index
Fixed: 536704 - auto sending return receipts does not work
Fixed: 537820 - quick search in smart folders/saved searches should prefer offline when it has a choice
Fixed: 538354 - Migration assistant doesn’t set property server.offlineDownload properly
Fixed: 538414 - Recover mail downloaded to Local Folders-1
Fixed: 538568 - Thunderbird 3.0 can’t handle autoconfig files with daysToLeaveMessagesOnServer elements.
Fixed: 538896 - Set up buildbot for Thunderbird 3 releases independent of Thunderbird 3.1

Changes for v3.0 RC 2 - v3.0

New Search with Advanced Filtering Tools
New Search with Advanced Filtering Tools
Search results now include advanced filtering tools. You have the option to filter your results by sender, tag, attachments, people, folder, and mailing list. You can also filter your email using the timeline tool.
New Global Search Field with Autocomplete
When typing in the Global Search field, Thunderbird autocompletes against your address book. You have the option of searching everywhere or filtering against different parts of the email such as by subject or by sender.
User Experience Improvements
New Mail Account Setup Wizard
The new Mail Account Setup Wizard matches against a database of email settings from popular mail providers so that you will only need to provide your name, email, and password to set up new mail accounts.
Redesigned Mail Toolbar
The Mail Toolbar is redesigned to include the new Global Search bar. Buttons such as reply, forward, delete, junk are part of each email message. You can add those buttons back to the main toolbar by customizing the toolbar.
Tabbed Email Messages
Double-clicking or hitting enter on a mail message will now open that message in a New Tab window. Middle-clicking on messages or folders will open them in a Tab in the background. When quitting Thunderbird, visible tabs will be saved and will be restored when you open Thunderbird the next time. There is also a new Tab menu on the Tab toolbar to help you switch between Tabs.
Smart Folders
The folder pane offers a Smart Folders mode which combines special mailboxes, like Inbox, from multiple accounts. Smart Folders is now on by default.
New Message Summary View
Selecting multiple messages will give you a summary view of the emails you have selected.
Column Headings
The column headings that are displayed and the order in which they are displayed can now be set on a per-folder basis.
Message Archive
You can now file messages from your Inbox or other folders into the new Archive folder system.
Activity Manager
The Activity Manager records all the interactions between Thunderbird and your email provider in one place.
New Add-ons Manager
The new Add-ons Manager (Tools > Add-ons) can now be used to find, download, and install Thunderbird Add-ons which includes Extensions, Themes, and Plugins. Note that few Add-ons are compatible with this beta at the time of release, as Add-on developers need to upgrade them.
Improved Address Book
If someone is in your address book, it is indicated by a new star icon which you can click to edit contact details inline. If they are not in your address book, you can add them with one click of the icon. A new birthday field allows you to keep track of your friends' birthdays. You can also add a photo for contacts in your address book.
Improved Gmail Integration
Better recognition and integration of Gmail's special folders such as Sent and Trash including non-English versions of Gmail. Thunderbird also uses All Mail as the Archives folder.
For Windows Vista users, Thunderbird 3 is now integrated with Vista search results. On first start, Thunderbird will prompt to install its indexing system into Windows Vista and you can choose to see Thunderbird email and news messages in Windows search results.
For Mac users, Thunderbird 3 is now integrated with Spotlight, can import from Mail.app, read your OS X address book, and use Growl for new mail alerts.
Performance Improvements
IMAP Folder Synchronization
Thunderbird will download IMAP messages by default in the background to allow for faster message loading and better offline operation. This feature can be enabled on an individual folder basis via Folder properties, or for all folders in an account via Account Settings / 'Synchronize & Storage'.

Changes for v3.0 RC 1 - v3.0 RC 2

Fixed
shutdown hang, high cpu, no open imap connections
[autoconfiguration] "Download new messages automatically" should be checked/activated/enabled by default (at least for POP3 accounts!)
Theme is labeled as version 2.0
"Download More Dictionaries" fails to open webpage correctly

Changes for v2.0.0.22 - v2.0.0.23

MFSA 2009-42 Compromise of SSL-protected communication

Changes for v2.0.0.14 - v2.0.0.16

Fixed in Thunderbird 2.0.0.16
MFSA 2008-34 Remote code execution by overflowing CSS reference counter
MFSA 2008-33 Crash and remote code execution in block reflow
MFSA 2008-31 Peer-trusted certs can use alt names to spoof
MFSA 2008-29 Faulty .properties file results in uninitialized memory being used
MFSA 2008-26 Buffer length checks in MIME processing
MFSA 2008-25 Arbitrary code execution in mozIJSSubScriptLoader.loadSubScript()
MFSA 2008-24 Chrome script loading from fastload file
MFSA 2008-21 Crashes with evidence of memory corruption (rv:1.8.1.15)

Version history for Mozilla Thunderbird

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