We are excited to announce the release of Zotero 4.0. Zotero 4.0 is a major update over 3.0, offering many new features and bug fixes, including:

• Tag colors
• On-demand download support
• Relative path support for linked files
• Automatic style updating for all installed styles
• Automatic journal abbreviation support
• Firefox 20 compatibility (Zotero for Firefox)

…plus much more. See the 4.0 changelog for more details and a complete list of changes.

Zotero 4.0 for Firefox is compatible with Firefox 17 and later.

• Install Zotero 4.0.1 for Firefox

• Download Zotero 4.0.1 for Mac
• Download Zotero 4.0.1 for Windows
• Download Zotero 4.0.1 for Linux i686
• Download Zotero 4.0.1 for Linux x86_64