I must hit cancel repeatedly to make it go away - temporarily.

The Safari icon looks like a blue compass in your Applications folder.

Its located on your menu bar in the upper-left corner of your screen.

When you press the Command and comma buttons at the same time, it will open Preferences.

It looks like a lock icon at the top of the Preferences window.

Safari will now block all pop-up windows that appear when you open or close a web page.

You can change it anytime by unchecking this box from Preferences.

The Chrome icon looks like a small blue circle with yellow, green, and red components wrapped around it.

This option is written in blue letters at the bottom of the Settings tab.

Chrome will now block all pop-up windows that appear when you open or close a web page.

This option will open a new window with a list of all your pop-up exceptions.

Chrome will not block pop-ups from websites saved in your pop-up exceptions list.

An X button will appear on the right-hand side of the exceptions box when you hover over a website on the list.

Click on it to delete this website from your pop-up exceptions.

The Firefox app looks like a blue world icon with a red fox wrapped around it.

The Content option is listed next to a page icon on the left panel.

Firefox will now block all pop-up windows that appear when you open or close a web page.

It will open a new window with a list of all your pop-up exceptions.

Firefox will not block pop-ups from websites saved in your pop-up exceptions list.

This button is located in the lower-left corner of the pop-up exceptions list.

Firefox will now have no pop-up exceptions, and block all pop-up windows from all web pages.

Block Pop Ups On Chrome For Mac