Third-party cookie will be blocked in future Microsoft Edge versions as part of unpartitioned third-party cookie deprecation.

Third-party cookies, which are cookies set by a website different from the one you're currently visiting, are becoming increasingly restricted in Microsoft Edge and other modern web browsers. This is due to the growing concern over privacy and data tracking. Unpartitioned third-party cookie deprecation refers to a more comprehensive approach where these cookies are no longer allowed without user consent or explicit opt-in.

In the upcoming versions of Microsoft Edge, third-party cookies will be blocked by default, meaning that websites won't automatically have access to data from users across multiple domains. This change aims to give users better control over their data and limit the ability of advertisers and trackers to follow users across multiple sites without their knowledge or permission.

Here's how this affects browsing:

1. Limited tracking: Users will have less persistent tracking, making it harder for advertisers to build detailed profiles.
2. Increased privacy: Users can have more control over what information is shared with third parties, reducing the potential for unauthorized surveillance.
3. Changes to website functionality: Websites that rely on third-party cookies for functionality like login sessions or personalized content might require alternative methods (e.g., Local Storage, Web Tokens) to work.