ABP was not responding to "disable for this site" instructions. It shows disabled but a weekly grocery ad that I want to see will not show up. I get a "fix your blocker or turn of private browsing" message. I tried disabling ABP totally. No change. I deleted ABP totally. Restarted Firefox. No change.

I have, to my knowledge, no other ad blocking enabled or installed.

This may work for other people and maybe for other stores, but not for me.