Mozilla Thunderbird Portable

What is new in this release:

Version 60.9.1 may include unspecified updates, enhancements, or bug fixes.

What is new in version 60.3.1:

Fixed:

• Double-clicking on a word in the Write window sometimes launched the Advanced Property Editor or Link Properties dialog
• Cookie removal (not working since Thunderbird version 52)
• "Download rest of message" not working if global inbox was used
• Encoding problems for users (especially in Poland) when a file was sent via a folder using "Sent to > Mail recipient" due to a problem in the Thunderbird MAPI interface
• According to RFC 4616 and RFC 5721, passwords containing non-ASCII characters are encoded using UTF-8 which can lead to problems with non-compliant providers, for example office365.com. The SMTP LOGIN and POP3 USER/PASS authentication methods are now using a Latin-1 encoding again to work around this issue.
• Shutdown crash/hang after entering an empty IMAP password

What is new in version 60.0:

• When writing a message, a delete button now allows the removal of a recipient. This delete button is displayed when hovering the To/Cc/Bcc selector.
• Many improvements to attachments handling during compose: Attachments can now be reordered using a dialog, keyboard shortcuts, or drag and drop. The "Attach" button moved to the right to be above the attachment pane. The access key of the attachment pane (e.g. Alt+M, may vary depending on localization, Ctrl+M on Mac) now also works to show or hide the pane. The attachment pane can also be shown initially when composing a new message. Right-click on the header to enable this option. Hiding a non-empty attachment pane will now show a placeholder paperclip to indicate the presence of attachments and avoid sending them accidentally.
• "Edit Template" command. This also solves various problems when saving as template (duplicates created, message ID lost).
• "New Message from Template" command
• Allow changing the Spellcheck Language from status bar
• Light and Dark themes
• WebExtension themes are now enabled in Thunderbird
• A default startup directory in the address book window can now be configured
• Individual feed update interval
• An option under "Tools > Options, Advanced, General" now allows to select whether date/time display will follow the application locale (adjusted by operating system's format settings for that locale) or the locale selected in the operating system's regional settings. In other words, an US English Thunderbird can use, for example, German formats.
• OAuth2 authentication for Yahoo and AOL
• FIDO U2F support
• Thunderbird now allows the conversion of folders from mbox to maildir format and vice versa. This is an experimental feature that needs to be enabled by setting the preference mail.store_conversion_enabled. Note that this functionality does not not work if the option "Allow Windows Search/Spotlight to search messages" is selected.
• Calendar: Allow copying, cutting or deleting of a selected occurrence or the entire series for recurring events
• Calendar: Provide an option to display locations for events in calendar day and week views
• Calendar: Provide the ability for sending/not sending meeting notifications directly instead of showing a popup
• Calendar: Option to select the target calendar when pasting an event or task
• Calendar: Allow email scheduling for CalDAV servers supporting server-side scheduling
• Thunderbird Chat now contains multiple built-in message themes

What is new in version 52.8.0:

Various security fixes.

What is new in version 52.6.0:

• Fixed: Searching message bodies of messages in local folders, including filter and quick filter operations, not working reliably: Content not found in base64-encode message parts, non-ASCII text not found and false positives found.
• Fixed: Defective messages (without at least one expected header) not shown in IMAP folders but shown on mobile devices.
• Fixed Calendar: Unintended task deletion if numlock is enabled.
• Various security fixes.

What is new in version 52.2.1:

Problems with Gmail (folders not showing, repeated email download, etc.) introduced in version 52.2.0.

What is new in version 52.1.0:

• Fixed: Google Oauth setup can sometimes not progress to the next step
• Fixed: Background images not working and other issues related to embedded images when composing email
• Various security fixes

What is new in version 52.0.1:

Clicking on a link in an email may not open this link in the external browser.

What is new in version 45.7.1:

Fixed crash when viewing certain IMAP messages (introduced in 45.7.0).

What is new in version 45.6.0:

• The system integration dialog was shown every time when starting Thunderbird
• Fixed Various security fixes

What is new in version 45.2.0:

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

What is new in version 45.1.1:

• When entering members into a mailing list, the enter key dismissed the panel instead of just moving onto the next line
• Email without HTML elements was sent as HTML, despite "Delivery Format: Auto-detect" option
• Options applied to a template were lost when the template was used.
• Contacts could not be deleted when they were found through a search
• Views from global searches did not respect "mail.threadpane.use_correspondents"

What is new in version 45.0:

• Add a Correspondents column combining Sender and Recipient
• Much better support for XMPP chatrooms and commands.
• Remote content exceptions: Improved options to add exceptions.
• Implement option to always use HTML formatting to prevent unexpected format loss when converting messages to plain text.
• Use OpenStreetmap for maps (even allow the user to choose from list of map services)
• Allow spell checking and dictionary selection in the subject line
• Allow editing of From when composing a message.
• Add dropdown in compose to allow specific setting of font size.
• Return/Enter in composer will now insert a new paragraph by default (shift-Enter will insert a line break)
• Allow copying of name and email address from the message header of an email
• Mail.ru supports OAuth authentication.
• Fixed: When sending e-mail which was composed using Chinese, Japanese or Korean characters, unwanted extra spaces were inserted within the text.
• Fixed: Spell checker checked spelling in invisible HTML parts of the message.
• Fixed: When saving a draft that is edited as new message, original draft was overwritten.
• Fixed: External images not displayed in reply/forward
• Fixed: Crashed in some cases while parsing IMAP messages.
• Fixed: Properly preserve pre-formatted blocks in message replies.
• Fixed: Copy/paste from a plain text editor lost white-space (multiple spaces/blanks, tabs, newlines)
• Fixed: "Open Draft"/"Forward"/"Edit As New"/"Reply" created message composition with incorrect character encoding.
• Fixed: Grouped By view sort direction change was broken, plus enabled custom column grouping.
• Fixed: New emails into a mailbox did not adhere to sort order by received.
• Fixed: Box.com attachments failed to upload.
• Fixed: Drag and drop of multiple attachments failed to OS file folder.
• Fixed: XMPP had connection problems for users with large rosters

What is new in version 38.7.1:

Disabled Graphite font shaping library.

What is new in version 38.6.0:

• Various security fixes.
• Filters ran on a different folder than selected
• For Windows systems on roaming profiles, could not display messages after Thunderbird update (related to Lightning updates)

What is new in version 38.5.1:

Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements.

What is new in version 38.3.0:

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

What is new in version 38.1.0:

• Fixed: Copy/Paste into plain text editor deletes newlines from quoted text.
• Fixed: Cross-posts won't send because Newsgroups: groups are separated with comma+space, not just comma.
• Fixed: Cannot send email through exchange server (NTLM).
• Fixed: Doesn't display GB2312 encoded texts correctly for Chinese Characters.
• Fixed: OAuth2 authentication for GMail does not work when specified server is imap.gmail.com or smtp.gmail.com.

What is new in version 31.4:

• The previous issues with jp mac builds have now been fixed, and Thunderbird will no longer need to be run in 32-bit mode.
• Installing extensions within Thunderbird no longer requires download and installing as a filee
• Security fixes

What is new in version 31.1.2:

• Fixed an issue where anchor links would not work in HTML emails.
• Security fixes.