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 has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.