Safari: Enable/Disable Pop-up Blocker

How to enable or disable the pop-up blocker in the Apple Safari web browser for MacOS Sierra.

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Safari 12 for MacOS

Block or Allow All Websites by Default

1. Select “Safari” > “Preferences“, then select on “Websites” at the top of the window.
2. Select “Pop-up Windows” on the left side.
3. Use the “When visiting other websites” drop-down menu to one of the following:
   • Block and Notify
   • Block
   • Allow
     

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Block or Allow Single Website

1. Visit the website you would like to block or allow.
2. Select “Safari” > “Preferences“.
3. Select on “Websites” at the top of the window.
4. Select “Pop-up Windows” on the left side.
5. The website should be listed where you can select a setting in the drop-down menu.
   • Block and Notify
   • Block
   • Allow

When Safari is set to “Block and Notify”, you can allow pop-up windows right after they have been blocked by selecting the two boxes in the address bar.

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Safari 11 and 10 for MacOS

Option 1

1. Select “Safari” > “Preferences“.
2. Click on “Security” at the top of the window.
3. Check the box “Block pop-up windows” to enable this feature. Uncheck it to disable it.
   

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Option 2

1. 1. From “Utilities“, launch the “Terminal” app.
   2. To disable popup blocker, type:
      defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2JavaScriptCanOpenWindowsAutomatically -bool true

      To enable popup blocker, type:

      defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2JavaScriptCanOpenWindowsAutomatically -bool false
   3. Press “Enter“, and the command sets to popup blocker setting as desired.

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iPhone and iPad Version

1. 1. From the Home screen, select “Settings“.
   2. Choose “Safari“
      
   3.  Slide the “Block Pop-ups” to “On” (green) to block pop-ups, or slide it to “Off” (white) to never block pop-ups.