Mozilla’s Firefox 91, released this morning, includes a new privacy management feature called Enhanced Cookie Clearing. The new feature allows users to manage all cookies and locally stored data generated by a particular website—regardless of whether they’re cookies tagged to that site’s domain or cookies placed from that site but belonging to a third-party domain, eg Facebook or Google.
Building on Total Cookie Protection
The new feature builds and depends upon Total Cookie Protection, introduced in February with Firefox 86. Total Cookie Protection partitions cookies by the site that placed them, rather than the domain that owns them—which means that if a hypothetical third party we’ll call “Forkbook” places tracking (or authentication) cookies on both
grandmascookies.com, it can’t reliably tie the two together.
Without cookie partitioning, a single Forkbook cookie would contain the site data for both
grandmascookies.com. With cookie partitioning, Forkbook must set two separate cookies—one for each site—and can’t necessarily relate one to the other.
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The Article Was Written/Published By: Jim Salter