Mozilla Thunderbird

Mozilla Thunderbird is a product of the Mozilla Corporation and was founded by the Mozilla Foundation on July 28, 2003. As a software in the email client genre, Thunderbird is an instance of both Product and Software. It operates under multiple licenses, including the GNU General Public License version 2.0, GNU Lesser General Public License version 2.1, Mozilla Public License version 1.1, and Mozilla Public License version 2.0.