Download Mozilla Thunderbird 91.9.1

The Mozilla Foundation has released version 91.9.1 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 a native client for a Mac equipped with an Apple Silicon processor. Two additional security vulnerabilities have been fixed in this release.

Fixes

• Various security fixes