Firefox Focus and Klar Terms of Use by Mozilla
Updated 16 December 2025
The Firefox Focus and Klar Terms of Use set out the rights, permissions, and responsibilities for using Mozilla’s open source Firefox browser, including licensing, intellectual property, optional services, liability limits, and termination. They are issued directly by Mozilla Corporation, clearly linked to the applicable privacy notices and open source licences, and written to define how the software may be used across jurisdictions.
[mobile browser name] Terms of Use
Effective [effective date]
[browser name] is free and open source web browser software, built by a community of thousands from all over the world.
Please read these Terms of Use (“Terms”) carefully because they explain important information about using your copy of the [browser name] software. These Terms are a binding agreement between [corporation name] Corporation (“[company name]”) and You. For details about [browser name] privacy practices, please read the [mobile browser name] Privacy Notice [link to privacy notice].
[company name] Gives You Certain Rights and Permissions
[company name] grants you a personal, non-exclusive license to install and use the “Executable Code" version of the [software name] web browser, which is the ready-to-run version of [software name] from an authorized source that you can open and use right away.
[software name] is Open Source Software
We make the source code for [software name] available to you under the terms of various open source licenses, including the [company name] Public License. This means you may use, copy, modify, and distribute [software name] to others, as long as you follow the open source licenses and the [company name] Trademark Guidelines. These Terms only apply to the Executable Code version of [software name], not the [software name] source code.
In order to play certain types of video, [software name] may download content decryption modules from third parties which may not be open source.
[company name]’s Intellectual Property
[company name] does not grant you any intellectual property rights in [software name] that are not specifically stated in these Terms. For example, these Terms do not give you rights to use any copyrights, trademarks, or other distinctive brand features of [company name] or its licensors.
You Give [company name] Certain Rights and Permissions
You give [company name] the rights necessary to operate [software name]. This includes processing your data as we describe in the [browser name] Privacy Notice. It also includes a non-exclusive, royalty-free, worldwide license for the purpose of doing as you request with the content you input in [software name]. This does not give [company name] any ownership in that content.
Your Feedback and Suggestions
If you give [company name] any ideas, suggestions, or feedback about the Services, you give [company name] permission to use them for free and without any additional obligations.
If You Use Certain Optional [software name] Features or Services, There are Additional Terms
Some Services in [software name] Require a [company name] Account
If you want to use certain services like sync, you’ll need a [company name] account. To create a [company name] account, you will also need to agree to the Terms of Service and Privacy Notice for [company name] accounts.
Other Optional Services
Some features in [software name] require you to opt in to them specifically. In order to use them, you will need to agree to the specific Terms and Privacy Notice for each service you use.
[company name] Can Update or Terminate This Agreement
[company name] Can Update These Terms
Every once in a while, [company name] may decide to update these Terms. We will post the updated Terms online. We will take your continued use of [software name] as acceptance of such changes. We will post an effective date at the top of this page to make it clear when we made our most recent update.
Termination
These Terms apply until either you or [company name] decide to end them. You can choose to end them at any time for any reason by stopping your use of [software name] . [company name] can suspend or end anyone’s access to [software name] at any time for any reason, including if [company name] decides not to offer [software name] anymore. If we decide to suspend or end your access, we will try to notify you at the email address associated with your account or the next time you attempt to access your account.
You Are Responsible for the Consequences of Your Use of [software name]
You agree that you will not use [software name] to infringe anyone’s rights or violate any applicable laws or regulations.
You will not do anything that interferes with or disrupts [company name]’s services or products (or the servers and networks which are connected to [company name]’s services).
You Won’t Claim [company name] is Responsible for Your Use of [software name](Indemnification)
You agree to indemnify and hold [company name] and its affiliates harmless for any liability or claim from your use of [software name], to the extent permitted by applicable law.
There are Some Important Limitations on [company name]’s Liability
To the extent permitted by applicable law, you agree that [company name] will not be liable in any way for any inability to use [software name]or for any limitations of [software name]. [company name] specifically disclaims the following: Indirect, special, incidental, consequential, or exemplary damages, direct or indirect damages for loss of goodwill, business interruption, lost profits, loss of data, or computer malfunction. Any liability for [company name] under this agreement is limited to $500.
You may have other rights under your own country’s laws. Nothing in these Terms is intended to affect those rights, if they apply.
[software name] is Provided “As is” (Warranty Disclaimer)
[company name] provides [software name]“as is.” To the extent applicable law allows, [company name] and its affiliates specifically disclaim any legal guarantees or warranties such as “merchantability,” “fitness for a particular purpose,” “non-infringement,” and warranties arising out of a course of dealing, usage, or trade.
Other Things You Should Know
Choice of Law
[governing law] law applies to this contract, except for [governing law exception].
If there is any conflict between this English version of these Terms and a translation, this English version applies.
You can contact [company name] at:
[corporation name] Corporation
Attn: [company name]– Legal Notices
[floor/suite]
[city, state/province, zip/postal code]
[country]
[legal notices email address]
About this template
What is this template?
Firefox Focus and Klar Terms of Use by Mozilla is a free, ready-to-use Commercial law template you can open, customize, and download on GitLaw. It gives you a professionally structured starting point, so you never have to draft from a blank page. The wording is plain and modern, organized into clear sections that are easy to read, edit, and adapt to your own situation before you share or sign it.
When should you use it?
Reach for this Commercial law template whenever you need a reliable agreement quickly and want to be sure the essentials are covered. It suits individuals, freelancers, startups, and established businesses alike. Instead of paying for a document drafted from scratch, you can start here, tailor the details to your arrangement, and have a polished draft ready in minutes. This version is drafted with California (US) in mind, though you should always review the final wording against the laws that apply to you.
What's typically included?
A well-drafted Commercial law usually sets out the parties involved, the scope of the agreement, and each side's rights and responsibilities. Expect sections covering key terms and definitions, how long the agreement lasts, how it can be ended, and what happens if something goes wrong. This template brings those building blocks together in a sensible order, so you can focus on the specifics rather than worrying about what to include. Open it to read the full document, then sign up to edit, negotiate, and e-sign it directly in GitLaw.