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

Mozilla uses Glean to collect website usage data on some mozilla.org websites 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. 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 theGlean Dictionary. For more information about the way we handle and share your data on Mozilla websites, you can read ourWebsites, Communications and Cookies Privacy Notice.

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

Current preference:

Opt-out of first-party data collection

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

Opt-in to first-party data collection