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 142.0 changelog:
What’s New
- Visual signatures can be added to PDF attachments opened in Thunderbird
- "Copy Message Link" and "Copy News Link" added to header pane "More actions"
- Folder copy enabled within mail server accounts and local folders
- "Reset Folder Order" option added to folder pane to reset custom folder sorting
What’s Changed
- "Copy Message Location" removed from mail context menu
Fixed
- Users with attachments open in tabs saw an error on Thunderbird restart
- Notification sounds did not respect operating system"s do-not-disturb mode
- Non-English localized Thunderbird created English special folders on first start
- Users were unable to use Fastmail calendars due to missing OAuth settings
- Sending from unified or local folder failed if no default account was set
- Right-clicking "List-ID" -> "Unsubscribe" created double encoded draft subject
- On Linux, the close caption button was inactive when mouse was in screen corner
- Toggling dark message mode did not restore focus and scroll position
- Message list scrolled back when returning to mail tab after opening a message
- Deleting a single message in folder using "Group by Sort" failed after CTRL+A
- New newsgroups were not added in alphabetical order by default
- After updating to version 142, all newsgroup folders were sorted alphabetically
- With Thunderbird closed, clicking a "mailto:" link to send signed message failed
- Replying could fail with mailnews.reply_quoting_selection.multi_word set false
- Multiple saves while using "Options" -> "Send a Copy" resulted in multiple copies
- Thunderbird did not display contact photos in WebP format from CardDAV servers
- Installations from Microsoft Store did not open when clicking "mailto:" links
- Clicking the backspace icon in the quick filter field cleared the input field
- Initial launch had long load times and UI lag while messages downloaded
- "Mark" -> "All Read" affected newsgroup messages that had not been fetched yet
- Thunderbird could not reconnect to newsgroups after connection loss until restarted
- Sending a newsgroup post appeared successful when it had actually failed
- Archived RSS feed messages were sent to the archive folder of default identity
- Opening Website header link in RSS feed incorrectly re-encoded URL parameters
- Visual and UX improvements
- Security fixes
Download: Thunderbird 142.0 for Windows (EN/US) | 32-bit | ~70.0 MB (Open Source)
Download: Thunderbird 142.0 for Linux (EN/US) | 74.7 MB
Download: Thunderbird 142.0 for Mac OS (EN/US) | 132.0 MB
Download: Thunderbird 142.0 in other languages
View: Thunderbird Website | Screenshot | Release Notes