How can I control Internet privacy when Safari 11 has been installed?

Safari 11 contains sophisticated settings to handle your privacy and uses internal SQL databases to store data, so protecting your privacy by removing files with TinkerTool System no longer makes sense.

Apple may change the privacy features of Safari any time without further notice. We can only give a short overview here. Please see Apple’s official documentation on Safari for reference information.

Depending on what you actually intend by deleting web browser data, you can use different features to achieve your goal:

Related information: The Pane Privacy.