How do third parties use cookies, pixel tags ("pixels") and other similar technologies on Facebook?

We sometimes use service providers to help us provide certain products and services. For example, we use service providers to help you buy things using Facebook on your mobile phone. As part of those services, a provider may use a pixel to collect information about your phone so that, if you choose, it can help us conveniently bill you through your regular phone bill.

When you view, click or otherwise interact with an ad or app on or off Facebook, our partners use cookies or similar technologies like local storage to help provide you with relevant services and ads. For example, a platform partner may use cookies to customize your experience while you’re using their app. Or, an advertising partner may use a cookie to determine whether we’ve shown an ad and how it performed. Our partners also may use these technologies to help share information with Facebook, like how you use their website or app.

Here is more information about some of the companies advertisers use and the choices they offer: To learn more about how some of the most common advertisers and their partners use cookies and the choices they offer, you can review the following resources:

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