Partitioned cookies allow you to opt a cookie into partitioned storage, with a separate cookie jar per top-level site. Also known as Cookies Having Independent Partitioned State or CHIPS.

Learning resources on MDN

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Browser support

• Chrome 114 Released on 2023-05-30
• Chrome Android 114 Released on 2023-05-30
• Edge 114 Released on 2023-06-02
• Firefox ❌ Vendor position : positive
• Firefox for Android ❌ Vendor position : positive
• Safari 18.4 Released on 2025-03-31
• Safari on iOS 18.4 Released on 2025-03-31

Baseline availability blocked since March 2025 by Firefox (1 months)

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature