Prevent cross-site tracking in Safari on Mac
In the Safari app on your Mac, choose Safari > Settings, then click Privacy. Select “Prevent cross-site tracking.” Unless you visit and interact with the third-party content provider as a first-party website, their cookies and website data are deleted. Social media sites often put Share, Like, or Comment buttons on other websites. These buttons can be used to track your web browsing—even if you don’t use them. Safari blocks that tracking. If you still want to use the buttons, you’ll be asked for your permission to allow the site to see your activities on the other websites.