Hi, Now the migration has been performed, it turns out that all the themes that are available through about:addons in my "appearance" section no longer work. - Old themes linked to getpersonas.com are still listed, - but if I enable one of them, I only get a black background. Possibly a dupe of #861481 but I wanted to file this in the right component. PS: this happens for a significant fraction of my themes, but not all; "blue retro dots" is an example of such a broken theme. Thanks, jonathan

I'm also experiencing this issue. I had to uninstall and re-install all of my personas manually. This will be a pain for users. Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:23.0) Gecko/20130415 Firefox/23.0 ID:20130415030812 CSet: 261d6997d1d1