Cookies, Pixels & Similar Technologies
How Cookies Work
Cookies and other similar technologies help provide a better, faster and safer experience.
Technologies like cookies, pixel tags ("pixels"), and local storage are used to deliver, secure, and understand products, services, and ads, on and off Facebook. We want this page to help you understand more about these technologies and how they are used. Your browser or device may allow you to block these technologies, but you may not be able to use some features on Facebook if you block them. For more information about whether these tools are available and how they work, visit your browser or device's help material.
Check back here from time to time to get the latest information about these technologies and how they are used.
These technologies are tools that websites and applications use for security purposes and to deliver products, services, and advertisements, and to understand how they are used. With these technologies, a website or application can store information on your browser or device and later read that information back. We explain more about each of these technologies and how they are used on this page.
Why do we use these technologies?
|Show what matters to you||Improve your experience||Protection and security|
|They help us know who you are so we can show content that’s most relevant to you, including features, products, and ads.||They work with Facebook features and help us improve our products and services – so you can do things like see which friends are online in chat, use share buttons, and upload photos.||They help secure Facebook by letting us know if someone tries to access your account or engages in activity that violates our terms.|
|Categories of use||Examples|
|Authentication||These tools tell us when you’re logged in, so we can show you the appropriate experience and features. |
For example, cookies, local storage and similar technologies tell us when you are logged in to Facebook so we can show you relevant and social information when you visit other websites that use our social plugins. We also use this information to understand how people use our Platform and other apps and services.
|Security and site integrity||We use these to help keep Facebook safe and secure. They support or enable security features and help us detect activity that violates our Statement of Rights and Responsibilities. |
For example, they help protect your account from being accessed by anyone other than you. Cookies also let us know when several people have logged in from the same computer.
|Advertising||Things like cookies and pixels are used to understand and deliver ads and make them more relevant to you. |
|Localization||These help Facebook provide a localized experience. |
For example, we may store information in a cookie that is placed on your browser or device so you will see the site in your preferred language.
|Site features and services||These provide functionality that help us deliver products and services. |
|Performance||We use these to provide you with the best experience possible. |
For example, we may use a cookie to help us route traffic between servers and understand how quickly Facebook loads for different users. Sometimes we may store information on your browser or device so Facebook features you are using load and respond faster.
|Analytics and research||These are used to understand, improve, and research products and services, including when you access Facebook or other websites and apps from a computer or mobile device. |
The specific names of the cookies, pixels and other similar technologies that we use may change from time to time, but they generally will fall into the above categories. If you’d like to learn more about these tools, review our Data Use Policy. You can also take a look at the cookies section of our publicly available audit that provides a snapshot of the cookies we use, which was performed by the Irish Data Protection Commissioner’s Office. This will give you a good idea of the cookies we describe on this page.