Zotero is open-source, and it is easy for anyone to create additional tools to add functionality to the program. Over the years, many plugins have been created that give users the ability to customise Zotero to their needs and preferences.
To install them, the usual procedure is to download the file (with an xpi. extension) to your computer, then go to the Tools -> Plugins, click on the gear on the right, select Install Plugin from File and select the file.
For a complete list of Zotero plugins, click here.
ZoteroPreview adds a Preview tab with a citation preview for the item. You can directly copy and paste the citation.
Another way to preview a citation in all the styles you have in your Zotero is to use the Style Preview pane, a built-in feature of Zotero. Settings menu -> Cite, and click on the Style Preview button. Select an item and click on Refresh.
Zutilo is an extension that adds several features to Zotero, such as:
Go to the menu Tools -> Zutilo Preferences to select the features you want. Each time you will right-click on a reference, you will have an additional Zutilo menu with these functions.
This plugin has not been updated and does not work with Zotero 7 (october 2024)
Zotero Actions & Tags is a plugin for managing tags, with batch processing and the ability to set custom rules.
This plugin can auto-fetch DOIs for new items, shorten DOIs using http://shortdoi.org, and check the validity of DOIs.
A plugin to format item metadata and check for duplicate items when new items are added.