The easiest way to add content to your Zotero library is by using the browser connector as you search databases and websites. The connector button in your browser bar will change to show a source type icon or a folder when Zotero recognizes citation data that it can add to your Zotero library with a single click.
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When your browser can see information for an article or other citation, you'll see a page icon (or other icon style depending on what sort of information is available). Click on the icon to add this item to your Zotero library.
Add multiple citations from a database or website
If you see a folder icon appear in the browser bar instead of an item type icon, that means that Zotero has identified multiple citations on the page. Click on the folder and then choose the items you want to add to your Zotero library from the pop-up box.
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Click on the folder icon and then choose the items you want to add to Zotero from the pop-up window