If your Firefox popup blocker not working, then open a new Firefox window on your Mac or PC and click the gear icon in the top-right corner of the tab, which will direct you to your Preferences. Next click the three vertical lines in the top-left and select “Privacy & Security”. Scroll to the “Permissions” section, near the bottom of the page. Click Exceptions, type in the address of the website that you want to allow pop-ups for, then click “Allow.” Finally, click “Save Changes.”

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