First-party ephemeral storage protects users against data that first-party sites may store in the browser for tracking purposes. The latter clears third-party data automatically when the first-party site is exited that loaded these third-party scripts. First-party ephemeral storage complements the already used ephemeral third-party storage feature of the browser. Unlinkable Bouncing introduces first-party ephemeral storage in Brave Browser.

The storage is removed automatically once the site is no longer open, and that means that it can't identify the user anymore on the next (bounce tracking) visit. Basically, what the new technique does is create temporary DOM storage for the site that is used for bounce tracking. Unlinkable Bouncing is a complementary feature according to Brave that makes bounce tracking less effective through the use of temporary storage.

With aggressive blocking enabled, Brave warns users when a suspected bounce tracking URL is about to be loaded.

Debouncing attempts to skip known bounce tracking URLs to load the destination immediately.

Known tracking parameters are removed from URLs.

The feature skips known bounce tracking URLs to load the destination site directly.Ĭurrent stable versions of Brave may protect the user in the following ways against bounce tracking:

In 2021, Brave integrated warnings for users who have enabled aggressive tracking protection in the browser, and a new feature that it called Debouncing. Brave introduced several protections against bounce tracking in its browser in previous years.

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