Rated 5 out of 5 stars
It totally works. You just need to go into the settings (aka DownloadThemAll! Preferences) and under the Filters tab, tick the checkbox for "Pictures and Embedded Filter".
Once that is engaged, you'll see a new filter option in the DownloadThemAll window for "AntiContainer". That's where this addon will do it's work. Just make sure that filter is checked, and it'll work as advertised.
Thanks so much to the developers for this great addon.