Safari 17.2 adds Blob Partitioning to Protect Privacy

Apple today released Safari 17.2, which includes a new feature called blob partitioning. This feature helps to protect user privacy by preventing websites from tracking users across different websites.

Blobs are pieces of data that are stored in the browser's memory. Websites can use blobs to store data about users, such as their browsing history and preferences. This data can then be used to track users across different websites.

With blob partitioning, blobs are now stored separately for each top-level site. This means that websites can no longer access blobs that were created by other websites. This helps to protect user privacy by making it more difficult for websites to track users across different websites.