@mikewebguyThere's one correction I would like to make to what you've written:  Mozilla's blocking is already on by default in Private Mode; this has been the case for a long time in Firefox now.The concern here, and I think it's borne out by this blog post from Mozilla (look for the comment "releas...

HI Richard,I responded to what I think is related question today.In summary, I think that v65 of Firefox (Jan 2019) will block by default Adobe Target (amongst a lot of other things).I'm trying to find someone who can (hopefully!) disprove my conclusion or affirm it and then tell me what to do next....

The answer turns out to be quite simple:  you need to specify the fields that you want to see ('id' and 'name' are the defaults).So, add "fields":["definition"] to the request.

Hi Joris,Did you get any further with this?  I'm having the same issue.