Jeri, I started looking at popup suppression programs when I stupidly upgraded Paltalk, thinking it would solve a problem I was having. I believe the Paltalk people have made their popups as offensive as possible in hopes we'll spring for the popup-free version. The program I settled on is PopupKiller, a free program that's available here:
The program works fine for me, but I found that Paltalk first opens an instance of IE with a Paltalk title then very quickly switches to the advertising site for whatever popup is next in line. I found that, to effectively kill all Paltalk popups, I had to capture that first window, and the only way I could do it was to have PopupKiller active on the screen when the window first appears. It took a bit of planning on my part, but I did manage it. Theoretically, PopupKiller has a facility for users to upload their suppression lists and download others' lists to avoid having to individually capture popups, but I haven't been able to make this work. Although the program is free, there is a little blurb for a $7 registration (not mandatory), so maybe the synchronize feature is only for registered users.