Mozilla Thunderbird is an open-source email client designed for managing emails, news feeds, chat, and newsgroups. It was created by the Mozilla Foundation, known for developing the Firefox web browser. The project commenced, originating from the United States. Thunderbird was developed to provide users with a free, secure, and customizable email solution, emphasizing privacy and user control. Its creation aimed to offer an alternative to proprietary email clients, promoting open web standards and enhancing communication accessibility.