Developer's DescriptionBy Chuck BakerPackage any number of Firefox extensions/themes into a single installable file.CLEO (Compact Library Extension Organizer) is a Firefox extension that works with FEBE to package any number of extensions/themes into a single, installable. xpi file. You may have a list of your favorite extensions/themes that you would like to share with others. With CLEO, you can gather them all together into a single file and post them on a Web page. Others can install the whole batch with a just a couple of clicks.