7,282 captures
9 May 2012 - 1 Dec 2021
About this capture
Back to Facebook
Cookies, Pixels, and Similar Technologies
Expand All · Share
How Cookies Work
Cookies and other similar technologies help provide a better, faster, and safer experience.
Technologies like cookies, 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. Check back here from time to time to get the latest information about these technologies.

What are cookies, pixels, local storage, and similar technologies?
These technologies are tools that websites and applications use for security purpose 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 useExamples
AuthenticationThese tools tell us when you’re logged in, so we can show you the appropriate experience and features.

For example, cookies 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.
Security and site integrityWe 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.
AdvertisingThings like cookies and pixels are used to understand and deliver ads and make them more relevant to you.

For example, we may read a cookie that tells us you’re logged into Facebook so we can show you ads that may be interesting to you on Facebook or other websites. We may also use a cookie to learn whether someone who saw an ad on Facebook later visited the advertiser’s site. Similarly, one of our partners may use a cookie to determine whether we’ve shown an ad and how it performed. We also may work with a partner to show you an ad on Facebook after you’ve visited the partner’s site and this may involve the use of cookies.
LocalizationThese 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 servicesThese provide functionality that help us deliver products and services.

For example, cookies help you log in by pre-filling the username field and help make chat a better experience by showing which of your friends are online. We may also use cookies to help us provide you with social plugins and other customized content and experiences.
PerformanceWe 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 researchThese are used to understand, improve, and research products and services.

For example, we may use cookies to understand how you are using social plugins to improve them. We may also use a cookie to understand the ads served by us and our partners.

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.

Learn more

What are cookies?
Cookies are small files that are placed on your browser or device by the website or app you’re using or ad you’re viewing. Like most websites, we use cook...
How does Facebook use cookies?
We use cookies to make Facebook better, faster and safer. For example, cookies help us: Enable certain featuresProvide you with a more personalized experi...
When might Facebook place cookies on my device?
Facebook may place cookies on your device (ex: computer, mobile phone) when you visit us using a browser or device that allows the placement of cookies. Y...
When might Facebook read the cookies on my machine?
Web browsers send any cookies for a particular web domain (ex: facebook.com) to the website each time a machine with those cookies accesses content served...
Why does Facebook add cookies to any browser that visits its websites?
Cookies are set to provide, understand and improve a range of products and services. These cookies also help keep Facebook and the people who use Facebook...
How do third parties use cookies, 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 Fa...
How does Facebook use cookies for security purposes?
We use tools like cookies to help keep Facebook safe, secure and easy to use. Cookies support or enable security features. For example, with login approva...
Does Facebook use cookies if I don't have an account or have logged out of my account?
Facebook does use cookies if you don’t have an account or have logged out of your account. For example, we use cookies to help: Identify and disable the a...
What are pixel tags? How does Facebook use them?
Pixel tags (also called clear GIFs, web beacons, or pixels) are small blocks of code on a webpage that allow websites to do things like read and place coo...
What is local storage? How does Facebook use local storage technologies?
Local storage is an industry-standard technology that allows a website or app to store and retrieve data on a person’s computer, mobile phone, or other de...
Was this information helpful?
Facebook © 2012 · English (US)
Mobile · Find Friends · Badges · People · Pages · About · Create an Ad · Create a Page · Developers · Careers · Privacy · Cookies · Terms · Help
BasicsLearn About FacebookManage Your AccountExplore Popular FeaturesUse MobileSomething's Not WorkingReport Abuse or Policy ViolationsAds and Business SolutionsApps, Games and CreditsSafety CenterCommunity Forum