Mozilla Thunderbird (en-US)159.0
Thunderbird is a free email application that is easy to set up and customize - and it's loaded with great features!
v159.0
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Bring email messages, calendars, and contacts together in one desktop app, while also keeping up with newsfeeds and chat. Mozilla Thunderbird (en-US), developed by Mozilla, gives Windows users a single place to manage these forms of communication instead of switching among separate programs. It supports both separate account views and a unified inbox, so messages can be handled individually or together.
Thunderbird is easy to set up and customize, with filters and organizational controls that let users shape how incoming mail is handled. Its clean default appearance can be adjusted to suit different workflows and visual preferences. An open-standards approach gives people more flexibility when they use services from different providers or prefer software that is not tied to one closed system.
The application suits individuals, households, and organizations that need email alongside calendars, contacts, newsfeeds, or chat, including people coordinating several accounts in one workspace. It is particularly useful when communication and scheduling need to stay accessible from the same desktop interface.
The current 156.0.1 release runs on Windows 8 or later and Windows Server 2012 or later on x64 systems. It is distributed under an open-source license, and this release fixes a crash that could occur while saving a message.
Requires Windows 8+ · Server 2012+ · Architecture: x64
What's new in v159.0
What’s New new Linux tray icons indicate unread mail and show its count in the tooltip new Graph calendars are auto-detected on new account creation What’s Fixed fixed Non-ASCII IMAP tags could exceed server length limits and be rejected fixed Zoom Text Only option did not work in the View menu fixed Multiple messages were printed even after canceling the print dialog fixed Save All and Detach All failed for attachments with invalid filename paths fixed First Wrap Long Lines toggle did nothing in View Source fixed POP3 NTLM authentication failed because the password was sent incorrectly fixed Search Messages menu option was enabled but did not work for saved search folders fixed Quick Find shortcut (/) only worked after Ctrl+F was used once fixed Unicode email addresses could hide different Reply-To destinations fixed Newsgroups with UTF-8 names could display duplicate or incorrect messages fixed View > Folders did nothing in Calendar and Tasks tabs fixed Global search results did not display recipients in the To field fixed Forwarding malformed MIME messages could omit attachments fixed Retry and Save Locally failed after a sent-folder copy error fixed Closing an unmodified compose window prompted to save when using Body Text fixed MP4 attachments could be truncated when forwarding messages fixed Inline images disappeared when editing local or POP messages as new fixed EWS/Graph accounts could fail when outgoing server settings were incomplete fixed Account Hub Edit Configuration did nothing for Exchange and Graph accounts fixed First message filter condition could not be removed even when others existed fixed CardDAV address book sync stopped when the server rejected an invalid sync token fixed CardDAV passwords were not saved, causing repeated login prompts after restart fixed Thunderbird could hang on startup when restoring IMAP message and PDF tabs fixed Malformed message database files could cause excessive CPU usage fixed IMAP namespace root folders were inaccessible due to duplicated folder names fixed Excessive Microsoft Graph requests caused throttling and delayed message display fixed SMTP addresses with line breaks could inject unintended commands fixed POP3 sessions remained active after canceling the password prompt fixed Remote content could load in news articles with missing message headers fixed RSS feeds could inject arbitrary Message-ID and References headers fixed Large ICS calendar files could exhaust memory and freeze Thunderbird fixed CalDAV calendars could stop syncing after a network error until restart fixed Account Hub failed to discover CalDAV calendars for OAuth2 accounts fixed Yearly recurring events with multiple times per day only appeared at the first time fixed Visual and UX improvements fixed Security fixes
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