How is Foureyes affected by the deprecation of cookies in 2024?

It's important to note that browsers are not moving towards eliminating all cookies, but rather moving towards strong enforcement of domain boundaries so tracking can only be done within a domain and not across domains.
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Additionally, browsers are moving to limit how much contextual information about a user can be accessed to prevent companies from attempting to get around privacy protections.

Our use case (first party script acting on behalf of the owner of the website) is recognized by browsers as a valid use case that must be supported and we actively monitor browser and privacy changes and are continually making updates to our systems to maintain product functionality.

​How does Foureyes work on different browsers?

Foureyes tracking works on all browsers, but different browsers are approaching privacy in different ways.

For example, Safari substantially limits how long 3rd parties can track a user for and requires using additional tracking mechanisms (such as local storage) in addition to cookies.

Mozilla and Chrome are both taking a partitioned storage approach, which allows 3rd party cookies, but scopes them to a single domain. That allows cookies to be used by 3rd party service providers to track users on a client's site without allowing the 3rd party to track that user across multiple domains.