Zotero Add-on for Mac OS X 5.0.119 screenshot Zotero is an easy-to-use extension to help you collect, manage, and cite your research sources. Zotero lives right where you do your work — in the browser itself. Plugins for Word and OpenOffice make it easy to drop in references on the fly. Download Zotero Add-on for Mac OS X 5.0.119
