Firefox Relay Terms of Service by Mozilla

Open Legal LibraryUpdated 14 Dec 2025

The Firefox Relay Terms of Service govern the use of Mozilla’s email alias service, defining user rights and obligations, privacy protections, subscription and payment terms, liability limits, and termination conditions. It is an official contract issued by Mozilla Corporation, a well-established technology organisation, and is clearly versioned, publicly published, and supported by linked privacy notices and policies.

Other names:Terms & ConditionsT&CsTerms of UseUser Agreement

[service name] Terms of Service

Version [version number], effective [effective date]

[service name] (the “Service”) allows you to keep your primary email address safe and private from online services by making unique, alias email addresses that allow you to send and receive emails without revealing your primary email address.

Please read these Terms of Service carefully because they explain important information about your use of the Service.

You’ll Need A [product name] Account

A [product name] Account is required to use the Service. To create a [product name] Account, you will also need to agree to the Terms of Service and Privacy Notice for your [product name] Account.

Your Privacy

Your Privacy: The [service name] Privacy Notice explains what information is sent when you use the Service and how we handle and share that information.

Permissions Necessary to Provide the Service

Your Use of the Service: [company name] gives you permission to use [service name] according to these Terms of Service. This permission is only for your personal use. You may not transfer, sublicense, resell, or commercially exploit the Service. You also agree that your use of the Service will comply with [company name]’s Acceptable Use Policy. You are solely responsible for the Content you transmit and the consequences.

You give [company name] all rights necessary to operate the Service, including processing your email addresses, the aliases and alias labels you create and the emails you send and receive through the Service. We do not read or store the content of any of your messages. In the event that an email cannot be delivered to you, we will keep it on our servers and delete it after it has been delivered (in no event will we hold onto it for more than three days). If you use the feature to block promotional emails, the Service will check email headers to determine whether the email should be blocked.

The Service will only send email attachments up to 10 megabytes. Larger emails are deleted.

To learn more about how the Service works, you can see [company name]’s source code.

Your Feedback and Suggestions: If you give [company name] any ideas, suggestions, or feedback about [service name] or the services you use with the [service name], you give [company name] permission to use them for free and without any additional obligations.

[company name]’s Intellectual Property: Neither [company name] nor its licensors grant you any intellectual property rights in the Service that are not specifically stated in these Terms. For example, these Terms do not provide the right to use any copyrights, trademarks, or other distinctive brand features of [company name] or its licensors. The [company name] software is distributed under and subject to the current version of the [company name] Public License, or other similarly permissive licenses.

Your Payment

We offer [service name] as either a free service or a paid subscription service.

This is a preview. The full template is free on GitLaw.

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About this template

What is this template?

This document is a software-as-a-service agreement for a privacy tool. It contains a specific 10-megabyte limit on email attachments and a three-day retention policy for undeliverable messages. It is not an end-user license for locally installed software, but a service agreement for server-side email processing.

When should you use it?

Use this when launching a web-based privacy service that interacts with user data such as email headers and aliases. Use a standard SaaS Agreement instead if the service is for enterprise business-to-business use rather than personal consumer use.

What's inside

ClauseNameWhat it does
Your Use of the ServicePermissions Necessary to Provide the ServiceGrants a personal use license while prohibiting commercial exploitation and requiring compliance with the Acceptable Use Policy.
Your PaymentYour PaymentLimits free users to 5 random aliases and provides unlimited aliases and custom subdomains to paid subscribers.
30-Day Refund Policy30-Day Refund PolicyEntitles first-time subscribers to a full refund of their first term if they cancel within the first 30 days.
You Are Responsible For the Consequences of Your Use of the ServiceLiabilityCaps the service provider's total liability at $500 and excludes indirect, incidental, or lost profit damages.
TerminationTerminationPermits either party to terminate at any time, with a requirement to refund the current month if terminated without cause.
Choice of LawChoice of LawDesignates California law as the governing law and stipulates that the English version prevails over any translations.

Who it's for

  • individuals seeking to mask their primary email address using disposable or permanent aliases
  • users subscribing to a paid premium email privacy service with custom subdomains
  • software providers distributing email protection tools under a Public License

How long it runs and how it's signed

How long
Runs until someone ends it
Notice to end it
any time

Law it's drafted under

Refers to
Public License

California note

This version is drafted for California. US contract and employment rules vary by state, so it will not transfer cleanly elsewhere. Tell GitLaw where the parties are and it adjusts the draft.

Jurisdiction
California (US)
United States of America
Source
Firefox Relay Terms of Service by Mozilla
from Mozilla
Document info
HTML document. Document created on Wed Dec 10th, 2025. Last updated on Sun Dec 14th, 2025.
This document is public
Licensed under CC BY-SA 4.0 (Attribution-ShareAlike).
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