Other

Thunderbird makes unrequested connections

Thunderbird sometimes automatically connects to the Internet. These connections are for routine maintenance, update and security purposes.

Last updated: 04/16/2016

Support for Windows XP and Vista has ended.

Last updated: 01/02/2019

Primary Password is replacing Master Password. Learn more about why we are making this change.

Last updated: 05/17/2022

Thunderbird no longer supports 512 bit (so called US export) keys for TLS connections.

Last updated: 08/26/2015

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 102.0.

Last updated: 09/15/2022