Image doesn't appear. Sometimes the OP needs to add the image in a reply. Don't need to see it now anyways. If it looks fishy to you don't respond & close it OR report it to Mozilla via '''Help > Report Web Forgery ...''' from within Firefox. I just reported that website myself via that menu item. I didn't get that "update" notification myself, but it may have been blocked by either NoScript or uBlock Origin when I loaded that "empty" page. Better playing it safe by reporting it and let the experts figure out it was a false positive, than have less-astute users get taken in.