Last week, I cleared all of my Safari site cookies and cache. After a few days I went into Safari Preferences -> Privacy -> Manage Website Data to see what had accumulated since I cleared it. Lo and behold, I had cookies for Facebook.com and Facebook.net, even though I don't use Facebook anymore. I cleared them and checked a day later and they were back. I have 'prevent cross-site tracking' selected in my preferences. Shouldn't that setting prevent this?
Today I decided to see which sites were leaving Facebook cookies and it turned out that quite a few are. For example, Etrade will leave a Facebook cookie as soon as you access their login screen, so it's easy to test. Just clear Facebook cookies from Safari Preferences -> Privacy -> Manage Website Data. Make sure to click 'Done' after clearing the cookies. Go to the Etrade login page (you don't have to log in so you don't need an account to test this). Now go back to Safari Preferences -> Privacy -> Manage Website Data and filter on Facebook. Yikes!
This should not happen and it does not happen with Google Chrome (I tested this), so it's Safari specific. I'm using Safari 15.0, so I wonder if it's a bug with the new version. Is anybody else aware of this?
Today I decided to see which sites were leaving Facebook cookies and it turned out that quite a few are. For example, Etrade will leave a Facebook cookie as soon as you access their login screen, so it's easy to test. Just clear Facebook cookies from Safari Preferences -> Privacy -> Manage Website Data. Make sure to click 'Done' after clearing the cookies. Go to the Etrade login page (you don't have to log in so you don't need an account to test this). Now go back to Safari Preferences -> Privacy -> Manage Website Data and filter on Facebook. Yikes!
This should not happen and it does not happen with Google Chrome (I tested this), so it's Safari specific. I'm using Safari 15.0, so I wonder if it's a bug with the new version. Is anybody else aware of this?