I'm on Windows 10, using the Microsoft Edge browser when I see the ads. I don't believe that it's got anything to do with the browser storing cookies in my case, because I restored the computer to factory default right before I joined PC, and I've only ever visited PC since it was restored. In addition, to cover my tracks (hide my browsing history) from my abuser (husband), I have my browser set to delete my history and cookies every time a tab is closed.

That being said, I've never had an advertisement when on Tapatalk using my android phone.

I'll install firefox on my computer this afternoon and start using that to see if the ads continue to show up, or they disappear.