Install the Zotero Browser Connector

After you install the Zotero, you can add Zotero Connector to Browsers.

1.Go to 

If you do not see your current browser here, you can click Zotero Connectors for other browsers and install.

2. After install the Zotero Connector, you will see the new icon up here

Click , Settings - Extensions, you can on/off Zotero Connector.