Manage your first-party data collection preferences

Your privacy is very important to Mozilla. Our first-party telemetry and analytics platform, called Glean, follows our own high standards for lean data practices.

Mozilla uses Glean to collect website usage data on www.mozilla.org in order to ensure that we’re delivering the best possible user experience for our visitors. Glean does not share information with any third parties outside of Mozilla. Every piece of data we collect also goes through a strict review process. You can learn more about the specific types of data we collect in the Glean Dictionary. For more information about the way we handle and share your data on www.mozilla.org, you can read our Websites, Communications and Cookies Privacy Notice.

If you still want to opt-out of first-party analytics on www.mozilla.org, you can do so below. Clicking the opt-out button will set a preference cookie that is used to prevent it from initializing when you load our web pages. This preference cookie will last for 1 year.

Current preference:

If you change your mind, you can opt-in again here: