There was a rash of that like 2 years ago. I had to install an ad-blocker just to open this forum, and other websites that got their ads from the same place. I'm on Chrome now, and oddly I haven't noticed this new wave of pop up attacks. You aren't the first person, if it makes you feel better. My mother-in-law was having a lot of issues, even with major websites like Kohls.com.
2017 Equinox 3.6L Premier AWD
2011 Silverado 1500 LT, 5.3L 4X4