Zotero is a tool that collects, manages, and cites the sources you find during your research. In addition to saving a citation, you can add notes and images in your Zotero library and in many cases automatically download PDFs.
You can use Zotero to...
If you would like to look at other citation managers click here.
Download Zotero from https://www.zotero.org/download/
[The option of downloading Zotero as a plug-in for the Firefox browser is no longer available.]
1. Download the Zotero application for your operating system. If you plan to use Zotero with a word processor, close all word processing applications before running the installer.
2. When installing the Zotero connector, the option you are given depends on which browser you are using to access the page. In the example above, I used Firefox to access the Zotero site, so it prompted me to install the Firefox connector. Connectors are also available for Chrome and Opera. Use those browsers to access the Zotero page if you want to install their connectors. You can add as many connectors as you want -- they will all connect to your Zotero application.
Note: Safari 12 will no longer support Safari extensions distributed directly by developers. There is a workaround for using Zotero with Safari, but it will not have the full functionality available with other browsers.