About Your Rights by Mozilla

Open Legal LibraryUpdated 15 Dec 2025

The Thunderbird “About Your Rights” document outlines the permissions granted to users under the Mozilla Public License, including the ability to use, modify, and redistribute Mozilla Thunderbird and its source code. It is issued by Mozilla and is directly grounded in the Mozilla Public License, with a reference to Mozilla’s official Thunderbird Privacy Policy.

About Your Rights

[software name] is free and open source software, built by a community of thousands from all over the world. There are a few things you should know:

[software name] is made available to you under the terms of the [company name] Public License. This means you may use, copy and distribute [software name] to others. You are also welcome to modify the source code of [software name] as you want to meet your needs. The [company name] Public License also gives you the right to distribute your modified versions.

You can read the [software name] Privacy Policy at [link to privacy policy].

About this template

What is this template?

This document is a mandatory disclosure notice for open source software users. It is not a software license agreement itself but a summary of rights granted by an underlying Public License and a reference to privacy terms.

When should you use it?

Use this notice when shipping open source software to satisfy transparency requirements regarding licensing and privacy. Use a Software License Agreement instead if you need to define the full legal terms of use.

What's inside

ClauseNameWhat it does
First BulletSoftware License GrantGrants the user rights to use, copy, distribute, and modify the source code under the specified Public License.
Second BulletPrivacy PolicyDirects the user to a specific link to read the privacy policy associated with the software.

Who it's for

  • a developer or organization distributing open source software under a Public License
  • a software project informing users of their rights to modify and redistribute source code

United States note

This version is drafted for US law generally. Contract, employment and consumer rules vary by state — for example on non-competes and at-will employment. Tell GitLaw which state applies and it adjusts the draft.

Jurisdiction
United States of America
Source
About Your Rights by Mozilla
from Mozilla
Document info
HTML document. Document created on Wed Dec 10th, 2025. Last updated on Mon Dec 15th, 2025.
This document is public
Licensed under CC BY-SA 4.0 (Attribution-ShareAlike).
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