Download and install Zotero just as you would any other program. You will also need to install at least one browser Connector to allow your browser to save items to your Zotero library.
Connectors are available for Firefox, Chrome, and Safari.
Download and install Zotero from the Zotero website.
There's a different version for each operating system: Windows, Mac or Linux. Zotero's website will identify your operating system and will allow you to download the proper version.
If you're using Internet Explorer or a mobile browser, you can still save items to your Zotero library. A free Zotero account is required.
The Zotero Bookmarklet works with all desktop browsers and most mobile browsers (including Safari for iPad and the Android browser).
Visit the Zotero Bookmarklet page for installation instructions for your particular browser or device. You won't have to install any software -- just the bookmarklet!
Connectors allow your web browser to save citations to your Zotero library.
Open Chrome, Firefox, or Safari and click the Zotero Connector link for that browser to install it.
Each browser has its own version of the Zotero connector, so if you want to use multiple browsers, you'll need to install a compatible connector for each.