If you installed the Zotero Connector for Firefox, Safari, Chrome, or Edge, you are able to save citations automatically from within your browser to your Zotero library. 

1. Depending on the extension you are using, look for an icon to the left or right of your browser's address bar. It often looks like a capital letter "Z."
   • The icon changes shape to indicate how Zotero is interpreting the webpage you're looking at. Hover over the icon to get more information about what type of citation the icon is saving.
2. Click on the icon to save the citation(s). 
3. In the upper right-hand corner of your web browser, a dialog will pop up displaying the citation information for the particular resource you saved to your library. 
   • If you are currently working in a specific collection in the Zotero online library or application (that is, a collection highlighted in the left column rather than “My Library”), the reference(s) will be copied to that location as well as to "My Library."

Multiple Citations

On some web pages that list information about multiple items (e.g. a list of database search results), Zotero will show a folder icon. Clicking this folder icon will open a window in which you can select the items that you want to save to your library. 

To add references manually, follow the steps below:

1. Open Zotero online or Zotero 7 Standalone.
2. Click the "New Item" button (in Zotero online, it is a plus sign with no color right above your library's list of citation information; in Zotero Standalone, it is a piece of paper with a plus sign on the bottom left-hand corner). This will open a drop-down menu.
3. Select the appropriate item type. If you don't see the type you want, hover over "More," which will give you many more options.
4. You can then add the citation information in the right column.

Zotero can add items automatically using ISBN number, Digital Object Identifier (DOI), and PubMed ID. Follow the instructions below to save by any of these identifiers.

1. Open Zotero online or Zotero 7.
2. Click the "Add Item by Identifier" button. The button looks like a wand with sparks icon. 
3. Type the ID number and click "OK". You can also paste or enter a list of such identifiers at once.
   • Tip: Press Shift+Enter for a larger box.