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Mozilla Thunderbird 151.0 download

Thunderbird is a free email application that is easy to set up and customize - and it's loaded with great features!

Mozilla Email clients #13 Email clients
This is an older version. The current version is 159.0. Mozilla Thunderbird 159.0 · Released:

Installer files 151.0

ArchitectureTypeScopeFile sizeDownloadSHA256
64-bit EXE (NSIS) All users — download-installer.cdn.mozilla.net VirusTotal
32-bit EXE (NSIS) All users — download-installer.cdn.mozilla.net VirusTotal

Link and SHA256 come from the Windows Package Manager community manifest. Compare the hash of the downloaded file before running it.

Release notes

What’s New
new
Enable Thundermail OAuth sign-in with account auto-configuration
new
Enable users to override OAuth provider details for EWS accounts
new
Tasks can be sorted by created or modified date
What’s Changed
changed
Reinstated default application check when Thunderbird starts
changed
OpenPGP public key no longer attached by default in signed-only messages
What’s Fixed
fixed
Thunderbird could crash when processing message headers
fixed
Thunderbird could crash on startup
fixed
Calendar view tabs were not properly keyboard accessible
fixed
Thunderbird could crash when processing new incoming messages
fixed
On macOS, dragging attachments out of Thunderbird created multiple copies
fixed
Cancelling a newsgroup posting was not possible
fixed
Some IMAP emails showed current time instead of correct received date
fixed
Search result count was missing when using 'Find in Message' or Ctrl+F
fixed
Search results showed older irrelevant emails before newer exact matches
fixed
Reply with selected text lost formatting for HTML messages containing </pre>
fixed
Multipart/related attachments were not preserved when editing or forwarding
fixed
Forwarded malformed MIME email had empty body and extra attachment
fixed
OWL add-on description was not visible in Account Hub for non-en-US locales
fixed
Account Hub prompted for password after OAuth login, causing Outlook setup failure
fixed
Auto-discovered Account Hub values were not preserved for manual editing
fixed
Account Hub links for encryption and signature opened the wrong account
fixed
Virtual folders did not update correctly for filtered POP3 messages
fixed
Thunderbird could crash in spam filtering
fixed
Using thunderbird -compose with double quotes made last email address invalid
fixed
With auto-mark-read disabled, large mail still marked as read during load delay
fixed
It was not possible to create date-only all-day tasks
fixed
Task context menu (right-click) had several disabled menu items
fixed
'Current Tasks' view showed past and finished tasks instead of only unfinished
fixed
Visual and UX improvements
fixed
Security fixes

https://www.thunderbird.net/thunderbird/151.0/releasenotes/

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