Manage Your Sources: Zotero

• A free, open-source bibliographic management tool that collects, stores, and organizes citations you've found for journal articles, books, web sites and other sources.
• A desktop application and browser plugin that work together to save citations right to your desktop with optional web-based syncing between computers.

• Read content from your web browser to add to your personal library. 
• Store 300 MB of attachments (ie. PDFs) in the cloud.
• Insert formatted citations into your writing by installing a Zotero plugin in your word processor.
• Import records from traditional and non-traditional references, like wikis and websites. 
• Import references using a browser plugin.
• Retrieve PDF metadata.
• Organize and annotate your citations.

• Visit the Zotero website
  1. Download the Zotero desktop application
  2. Download a Zotero browser extension (Zotero Connector) for each browser you wish to use with Zotero (Firefox, Chrome, or Safari)

If you installed the Zotero Connector browser extension before May 2025, it may still use the old proxy configuration which will no longer work. Users with outdated configuration will see the following error when attempting to access electronic resources: “This site cannot be reached. The connection was reset. (ERR_CONNECTION_RESET)”.

To resolve this issue, we recommend deleting the proxy settings in the Zotero Connector browser extension by following these instructions:

1. Click on Zotero Connector.
2. Click on Options.
3. Navigate to Proxies.
4. Uncheck the Enable Proxy Redirection setting.
5. Delete the old proxy (https://subzero.lib.uoguelph.ca/login?url=) by selecting it in the “Configured Proxies” box and pressing the minus (-) button below it.
6. Clear your browser cache and cookies.
7. Close and open the browser.
8. Try to access the library resource again.

If you continue to experience problems, please contact us.

Citation managers don't always format citations perfectly. Remember to check your citations for missing or inaccurate information and formatting.