Once you have downloaded Zotero to your computer, installed the Zotero Connector in your preferred browser, and created your Zotero Account, you are ready to interact with Zotero while you do your research on your computer.
But what if you are using a different computer?
You can log into your Zotero Library from any computer. You can install the Zotero Connector in the browser of any computer. Once you log into your Zotero Library and install the Zotero Connector in the available browser, you can interact with Zotero while you do your research as if you were on your own computer.
Follow the instructions on this guide to set up syncing. Be aware, you must set up file syncing in order to save transfer pdfs files from your Zotero Library to your computer. Instructions for syncing can be found here: https://www.zotero.org/support/preferences/sync#file_syncing