You can install Thunderbird Mail on CentOS Stream 9, Rocky Linux 9, or Alma Linux 9 by following the instructions provided by Unixcop in their tutorial.

How To Install Thunderbird Mail on CentOS 9/ Rocky Linux 9/ Alma Linux 9

In this guide, we will install Thunderbird Mail on CentOS / Alma Linux & Rocky Linux systems. Mozilla Thunderbird is a free and open-source cross-platform email client, personal information manager, news client, RSS and chat client developed by the Mozilla Foundation and operated by subsidiary MZLA Technologies Corporation.

How To Install Thunderbird Mail on CentOS 9/ Rocky Linux 9/ Alma Linux 9