How to stop Amazon Prime Day popups My iMac runs High Sierra, and I use Safari. Both are fully updated.

This week, I am presented with recurring popups advertising Amazon Prime Day. I have cleared Safari's caches and cookies for all sites Amazon and Prime. "Block popups" is checked in Safari > Preferences > Privacy > Manage Website Data. Safari also runs the Safari extension Wipr, which is likewise up to date. Quits-and-restarts, both of the OS and Safari, are unavailing.

While the popups are easily dismissed, they're annoying. Other than these, I don't see popups or ads. 

Have any of you ideas how I might successfully block them, or find their source?
Try this:


Download &amp; Install AdBlock
Right click on the popup and select "Block This Ad"

Drag the slider until the popup is gone
Click "Looks Good"



Note: Example of blocking Google logo on homepage