Download Mozilla Thunderbird 91.7.0

The Mozilla Foundation has released version 91.7 of Thunderbird. Thunderbird is an open source client for e-mail and newsgroups, with features such as support for various mail and news accounts, a spam filter, spell checker, and a customizable appearance. In version 91 has included a warning when an email is sent to a potentially non-existent address, or if there are too many addresses on the public address line. There is also support for CardDAV and there is a native client for a Mac equipped with an Apple Silicon processor. The following changes and improvements have also been made in this release:

changes

• Thunderbird will use the first occurrence of headers that should only appear once

Fixes

• Auto-complete incorrectly changed a pasted email address to the primary address of a contact
• Attachments with filename extensions that were not registered in MIME types could not be opened
• Copy/Cut/Paste actions not working in Thunderbird Preferences
• Improved screen reader support or displayed message headers
• Various security fixes