In case you haven’t read it elsewhere, Flash and other plugins allow popups in Firefox, even if you have popups disabled. Here’s how to disable popups from plugins.
I made the change (it takes 30 seconds) and the sites that had been getting popups through to me aren’t anymore.
David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.