SOFTWARE LICENSE GUIDE
Mozilla Thunderbird
Mozilla Thunderbird is a free and open-source email client, news client, RSS and chat client. It is licensed under the Mozilla Public License (MPL) 2.0, allowing free use for personal and commercial purposes.
What it does
It manages emails, news feeds, and chat communications from a single application, offering features like message filtering, search, and customization.
Who it may suit
Individuals and organizations seeking a free, customizable, and privacy-focused desktop application for managing multiple email accounts and communications.
Free tier and license
It is entirely free to use.
Limitations to check
Specific limitations are not detailed; please check the official documentation.
Licensing notes
Mozilla Thunderbird is fully open-source software. It is licensed under the Mozilla Public License (MPL) 2.0, which permits free use for both personal and commercial purposes.
Verification details
Last licensing verification recorded: 2026-10-28.
Directory record last updated: 2026-08-18. These are separate dates: a record update does not necessarily mean the publisher's terms changed.
AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.
Frequently asked questions
Can Mozilla Thunderbird be used in a business environment?
Yes, Mozilla Thunderbird is free and open-source under the MPL 2.0, allowing free use for both personal and commercial purposes.
What is Mozilla Thunderbird?
It is a free and open-source desktop application that functions as an email client, news client, RSS feed reader, and chat client.
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