If it still isn’t showing up, try restarting your computer. You can copy/paste reference entries from the Zotero Web Library, but there are not any Google Docs integrations. The word processor plug-ins do not work with Chromebooks. The Zotero plug-in requires macros to work, so you need to be sure that macros are enabled. When you open MS Word, you may see a warning message pop-up about whether you want to enable macros. Click on the button to 'Reinstall Microsoft Word/LibreOffice Add-in.' That should hopefully establish a link to Word/LibreOffice and when you open Word/LibreOffice again, it should show up.

Under the Cite tab, you should see Microsoft Word listed in the Word Processors tab. Open Zotero (and close your word processor), then open Zotero preferences (Edit -> Preferences). If you are still not seeing the Zotero plug-in try the following tips. The Zotero desktop app needs to be running before you open Word or Google docs for the Zotero tab to appear. If you don’t see the Zotero tab in Word, Libre Office or Google Docs, restart those apps.

Zotero for mac word plugin