1. Tested up to 3.8 (Beta)
2. Now this plugin supports localization (or internationalization). i.e. option to translate into other languages. 
Plugin *.po file (popupwfb.po) available in the languages folder. Translators Welcome.

git-svn-id: https://plugins.svn.wordpress.org/popup-with-fancybox/trunk@810844 b8457f37-d9ea-0310-8a92-e5e31aec5664