Cookies, since their inception in 1994, have been the bedrock of stateful web interactions. A first-party cookie is set by the domain a user intentionally visits. A third-party cookie is set by a domain other than the one in the address bar (e.g., an ad network embedded via an iframe). On macOS, Apple has adopted an increasingly aggressive stance against third-party cookies, positioning privacy as a core differentiator.
Safari is the default browser on macOS. It uses a feature called "Prevent Cross-Site Tracking" to block third-party cookies by default. Step-by-Step Instructions Open on your Mac. Click Safari in the top menu bar. Select Settings (or Preferences on older macOS versions). Click on the Privacy tab at the top of the window. Uncheck the box next to Prevent Cross-Site Tracking . Refresh the website you were trying to use. How to Allow Third-Party Cookies on Google Chrome allowing 3rd party cookies on mac
If you’ve decided to allow them—either permanently or just for a quick fix—here is how to do it on the most popular Mac browsers: Cookies, since their inception in 1994, have been
Many "third-party" trackers now disguise themselves as first-party using CNAME DNS cloaking (e.g., metrics.example.com resolves to a tracking vendor). On macOS, allowing third-party cookies globally does not prevent this; it actually enables it because the browser sees example.com as the first party. Therefore, allowing third-party cookies offers no defense against modern cloaking. On macOS, Apple has adopted an increasingly aggressive