Common Voice Privacy Notice by Mozilla
Updated 10 December 2025
The Common Voice Privacy Notice explains how Mozilla collects, uses, and publicly shares voice recordings and optional demographic data contributed to its open-source speech datasets. It is governed by Mozilla’s trusted privacy framework and the data is released under the CC0 license through the Mozilla Data Collective, making it reliable for research and open AI development.
Common Voice Privacy Notice
Effective [effective date]
Privacy
When [company name] (that’s us), receives information from you, our [company name] Privacy Policy describes how we handle that information.
As of the Effective Date of this Notice, the information we make available through Common Voice will now be accessible through the [company name] Data Collective (“MDC”). Please visit MDC’s Privacy Policy here [link to privacy policy] to learn more about the Collective.
In addition, specific to Common Voice, we also process the following information:
Demographic data. You can optionally send us information such as your accent, age, and gender. This helps us and other researchers improve and create speech-to-text technology and tools.
Account data. You do not need to create an account to use Common Voice. If you decide to create an account, you will need to create a [company name] account here, and we receive your username and avatar, if you submit one. Your use of [company name] accounts is governed by the [company name] Accounts Terms of Service and [company name] Accounts Privacy Notice. Your email address is associated with your demographic and interaction data but is not shared to the public. We display leaderboards showing the number of recordings users make. You have the option whether or not you wish to appear on the leaderboards. You can delete your account at any time and your username and email will be removed. You can delete your [company name] aaccount at any time and your username and email will be removed.
Email. If you participate in the Alpha or Beta testing for the [project name] project, you must provide your email address so that we can send you a link to log in to participate in the [project name] project. At any time, you may create a [company name] account (as set forth above). If you do not create a [company name] account upon completion of the Alpha or Beta testing, we will delete your email address within two weeks after the completion of each testing program. Certain types of participation in Beta testing (e.g. for ultra low resource languages) may not require an email login.
Newsletter. You can subscribe to our newsletter, in which case we receive your email address. You can unsubscribe at any time and your email will be removed from the newsletter distribution list.
Voice Recordings. Voice recordings, along with any optionally provided demographic data, may be available in the Common Voice databases for public consumption and use under a [licence type].
Text. If you submit written sentences, we may also make those available in the Common Voice databases for public consumption under [licence type], in accordance with all our samples. We will not associate these sentences with the demographic data you submit.
Interaction data. We use Google Analytics to better understand how you interact with the Common Voice app or website. For example, we may use cookies to track de-identified information such as the number of voice samples you record or listen to, interactions with buttons and menus, and session length.
Technical data. We use Google Analytics to better understand how you interact with the Common Voice app or website. For example, we may use cookies to track de-identified information such as the number of voice samples you record or listen to, interactions with buttons and menus, and session length. We also collect the URL and title of the Common Voice pages you visit. To consistently improve the Common Voice experience, we collect information about browser type and version, viewport size, and screen resolution. This allows us to understand how people interact with Common Voice so we can improve it. We also collect your location, and the language setting in your browser to make sure it looks right for you. If you’d prefer to opt out of Google Analytics data collection, you can install the Google Analytics Opt-out Browser Add-on, which stops data transmission to Google Analytics.
We may disclose the Common Voice databases with affiliates, including current or future parents, subsidiaries, affiliates, and other organizations under common control or ownership with [company name] Foundation.
Learn more here. [url address]
About this template
What is this template?
Common Voice Privacy Notice by Mozilla is a free, ready-to-use Data Protection & Privacy 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 Data Protection & Privacy 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 United States of America in mind, though you should always review the final wording against the laws that apply to you.
What's typically included?
A well-drafted Data Protection & Privacy 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.