- Yabs.io Search (in tags:extensions,citation)urn:uuid:{349D2D46-FC56-F697-E949-72473B5A8F05}2024-03-28T03:06:32ZZotero - The Next-Generation Research Tool47112006-10-17T04:29:14ZZZotero [zoh-TAIR-oh] is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources. It lives right where you do your work — in the web browser itself.3time