Safari 12 (Mac) - Using the Pop-Up Blocker
This document explains how to enable and disable Safari's popup blocker. For general information on popup blockers, see Pop-Up Blocker - FAQ
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Click Safari, and then click Preferences.

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Click the Websites tab and locate Pop-up Windows on the left side.

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In the bottom right, toggle the drop-down menu labelled When visiting other websites to your preferences. You may also whitelist currently-open websites on this screen.

