You can use Zotero in several different mobile browsers using a "bookmarklet." The "bookmarklet" is a particular link that saves items directly to your Zotero account on the web.
To start using Zotero on your mobile device, you must first have a Zotero account and the device must have internet access.
Instructions for setting up your Zotero bookmarklet are available on the Zotero's Download Bookmarklet page.
The set up process will vary slightly between different browsers. You can use the bookmarklet with Safari on your iPhone/iPad, Android browser, Firefox Mobile browser, or Opera Mobile/Mini. A desktop version of the bookmarklet is also available.