Thunderbird 140.0
Thunderbird is a free, open-source, cross-platform application for managing email and news feeds. It is a local (rather than a web-based) email application that is powerful yet easy-to-use.
Thunderbird is clean and elegant by default, but easily customizable to match your workflow and visual preferences. It is loaded with unique and powerful features.
Thunderbird is developed, tested, translated and supported by the folks at Mozilla Corporation and by a group of dedicated volunteers. Thunderbird gives you control and ownership over your email. There are lots of add-ons available for Thunderbird that enable you to extend and customize your email experience.
Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts.
Thunderbird 140.0 changelog:
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
- Passwords are not remembered in 32-bit MAPI use without a compose window