There are several distinct ways to capture information from your browser using Zotero’s browser connectors.
Each method described here will grab a "snapshot" of the current page, as well as some basic information (metadata) about the page. This information provides the bibliographic data required for citations. When saving with basic website icons, Zotero only collects the information provided by the site (often what is coded into the HTML), so some data fields may remain blank and will require modification in Zotero.
Often you will need to add items by hand. This is especially important when using archival or other print materials not available on the web, or when working with nonstandard item types, such as reports, images, podcasts, or forum postings.
To manually add an item to your Zotero library, select the New Item icon , then select the appropriate item type from the More menu. Note that the most recently-used item types appear at the top of the New Item menu.
Sometimes the easiest and most accurate way to add an item to your Zotero library is to use the Add Item by Identifier feature. Click the Add Item(s) by Identifier icon then type in the ISBN of a book or a DOI or PMID of a journal article. Zotero will look for the corresponding item and create a complete record automatically.
In order for Zotero to produce accurate citations and bibliographies, it is extremely important that you ensure that each item is given complete and accurate metadata in Zotero, including classifying each as the correct item type. Often this will require manual edits. If Zotero contains incomplete or inaccurate information, your citations will be inaccurate.
It's easy to add PDFs to your Zotero library and automatically import their citation info.
If Zotero can't find a match on Google Scholar, don't worry--you can still save the citation from another catalog or article database, then drag the PDF onto the citation to make it an attachment, or select Create Parent Item from the right-click menu and input the metadata manually.
Right click on any PDF attachment on an existing Zotero item and select Rename File from Parent Metadata to clean up the filename.