Thunderbird Desktop
Version 91.3.1 | Released November 15, 2021
Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.
For more on all the new features in Thunderbird 91, see New in Thunderbird 91.0.
System Requirements: Details
- Windows: Windows 7 or later
- Mac: macOS 10.12 or later
- Linux: GTK+ 3.14 or higher
What’s Changed
changed
OpenPGP public keys will no longer count as an attachment in the message list
changed
Adding a search engine via URL now supported
changed
FileLink messages' template updated; Thunderbird advertisement removed
changed
After an update, Thunderbird will now check installed addons for updates
What’s Fixed
fixed
New mail popups were displayed while running full screen applications
fixed
Messages received with non-standard "koi8r" encoding were not supported
fixed
Various macOS stability improvements
fixed
PDF attachments opened in Firefox while composing an email
fixed
Addons were disabled when "Offline Settings" were set to "Ask me for online state (on startup)"
fixed
Clicking '"addons://" links in the Addons Manager prompted for an application to open it, rather than opening internally
fixed
The Contacts sidebar "Address Book" drop down was unreadable on Windows
fixed
vCard attachments were not shown when using "inline" view for attachments
fixed
Importing an ICS file with TODO items failed
Learn What’s Next
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