Cannot download thunderbird email client

Thunderbird 91.4.0 addresses several security issues.

The Calendar print dialog lacked a cancel button.

The Calendar invitation panel did not scroll when multiple invitations were pending.

The view of a new event did not autoscroll after reaching the bottom when creating a new event by 'clicking and dragging the mouse to create a box'.

Thunderbird's calendar did not clear multiday selections when changing the viewed week.

After selecting an extension provided protocol, it was no longer possible to create an IMAP/POP account.Outlook did not display FileLink messages correctly.Fixed a plain text message drag & drop issue.Activating mailto links caused the composer to start with the default sending identity instead of a 'configured alternative'.Fixed an issue that caused Thunderbird to stall after sending messages with NNTP and SMTP recipients.Added support for non-UTF8 news groups.

Fixed an issue that caused the forwarding of messages with attachments to fail sometimes.

Thunderbird failed to send messages when an IP address was configured as an IPv6 SMTP server (and not a hostname).

Here is the remaining list of changes in the new version of Thunderbird: Thunderbird installations with multiple language packs will also see improvements, as the engineers fixed an issue that caused high RAM and CPU usage resulting in a 'sluggish performance'. Installations with 'a multitude of folders' will see improved startup performance after the installation of the new version. Thunderbird 91.4.0 improves the performance of the email client in several scenarios.

Cannot download thunderbird email client