The Zotero plugins listed below are known to have been abandoned and are incompatible with current versions of Zotero, had their features incorporated into Zotero or other tools natively, or otherwise be unsuitable for general use.

• Vertov: Annotate Media Files, by Concordia Digital History Lab
  • This plugin is not maintained and does not work with Zotero 2.x+.
  • Provided media annotating plugin for Zotero.

• Delicious Library Export, by fparsons.
  • This plugin is not maintained and is incompatible with current versions of Zotero.
  • Exported items from a Delicious Library into Zotero.
  • Delicious Library can now natively export to .bib, which Zotero can import.
• AutoZotBib, by Robin Wilson
  • This plugin has been deprecated by the author, who suggests that Zotero BetterBibTeX be used instead.
  • Kept a BibTeX output file automatically in-sync with your Zotero library
• ZoteroExport, by Viktor Nagy
  • This plugin is not maintained and does not work with current versions of Zotero.
  • Added additional export options for attachments, e.g. to export files to e-book readers.
• Zotz, by Ryan Lee
  • This plugin is not maintained and does not work with Zotero 2.x+.
  • Published citations from Zotero to a SIMILE Exhibit in one step.
• Dontprint, by Robert Bamler.
  • This Firefox plugin is not compatible with Zotero 5.0.
  • Reformatted PDF attachments to optimize for small screens and sent them to your e-reader via e-mail.
• Zotero Autoexport, by Robert Kühn.
  • This plugin is not maintained and does not work with Zotero 5.0.
  • Exported items manually as a batch mode or automatically by time/on changes
  • Exported based on saved searches, group libraries, or collections
  • Enabled post-processing by external scripts

• Zotero Bibliography Locale Switcher, by Maxime Rigo.
  • This functionality has been built into Zotero natively.
  • Added a menu to Zotero to quickly change the locale used to render citations and bibliographies.
• Zoterodactyl, by Will Shanks
  • This plugin is not maintained and does not work with Zotero 5.0+.
  • Pentadactyl plugin that provided key mappings for common Zotero commands.

• VUE 3 Plugin for Zotero, by Mike Korcynski
  • This plugin is not maintained and does not work with current versions of Zotero.
  • Added features to mind-map Zotero items.
• Paper Machines, by Cora Johnson-Roberson
  • This plugin is not maintained and does not work with current versions of Zotero.
  • Provided visualization/topic modeling of Zotero collections.
• Zotero Maps, by Entropy Free LLC and Zotero
  • This plugin is not maintained and does not work with current versions of Zotero.
  • Allowed Zotero items to be explored on a map.
• SEASR Analytics for Zotero, by Boris Capitanu.
  • This plugin is not maintained and does not work with current versions of Zotero.
  • Analyzed Zotero items in the SEASR Analytics environment.
  • Warning: There are multiple reports for this plugin interfering with Zotero's quick copy ability.

• Propachi, by Frank Bennett, Brenton Wiernik.
  • This plugin for rapid-response processor debugging is no longer necessary for that purpose
  • Its additional functionality has been superseded by changes in Zotero
  • Uppercase Subtitles: Entering titles in “sentence case” is strongly recommended. The first character of a subtitle (following a colon) should be set in lowercase, unless it is a proper noun or acronym. Styles will convert titles to “title case” as necessary. Some citation styles (e.g., APA) require that the first word of subtitles also be uppercase. This plugin can enable such formatting.
  • This plugin also patches Zotero's citation processor to the latest version. This plugin is not necessary for most users.