How about disable or turning them off to verify there isn't some components still blocking it? Just because they are white-listed doesn't mean there is something else on the site that causes it to be blocked.

Thanks for the idea. I have Chrome on this machine and by literally removing Ghostery and another ad blocker, I got the Atlantic to load properly in Chrome. I guess I will have to literally delete Ghostery and AdBlock plus to see if it does the same in Firefox. Very frustrated because I want to use Firefox and have decent adblocking. I'm not up for an avalanche of unregulated ads.

I use Ghostery and Ublock Origin and have no problem going to the Atlantic about 2x's a week. As well can go in Private Mode and no problems.

Try deleting your cache and the cookies for the Atlantic and try again.

Please let us know if this solved your issue or if need further assistance.

It turned out that the privacy features of the Duck Duck Go search engine were triggering the Atlantic Magazine blocks. I hadn't realize that I would also have to whitelist the magazine url in Duck Duck Go.