diff --git a/chrome/content/zotero/import/importWizard.js b/chrome/content/zotero/import/importWizard.js
index eeac19fdc8..482bc31232 100644
--- a/chrome/content/zotero/import/importWizard.js
+++ b/chrome/content/zotero/import/importWizard.js
@@ -61,7 +61,7 @@ const Zotero_Import_Wizard = { // eslint-disable-line no-unused-vars
 	},
 
 	async init() {
-		const { mendeleyCode, libraryID } = window.arguments[0].wrappedJSObject ?? {};
+		const { mendeleyCode, libraryID, pageID } = window.arguments[0].wrappedJSObject ?? {};
 
 		this.libraryID = libraryID;
 
@@ -125,6 +125,10 @@ const Zotero_Import_Wizard = { // eslint-disable-line no-unused-vars
 		this.wizard.shadowRoot
 			.querySelector('.wizard-header-label').style.fontSize = '16px';
 
+		if (pageID) {
+			this.wizard.goTo(pageID);
+		}
+
 		if (mendeleyCode && Zotero.Prefs.get("import.mendeleyUseOAuth")) {
 			this.mendeleyCode = mendeleyCode;
 			this.wizard.goTo('page-options');
diff --git a/chrome/content/zotero/xpcom/integration.js b/chrome/content/zotero/xpcom/integration.js
index 76a79a3b07..c3561710d3 100644
--- a/chrome/content/zotero/xpcom/integration.js
+++ b/chrome/content/zotero/xpcom/integration.js
@@ -2655,11 +2655,42 @@ Zotero.Integration.URIMap.prototype.getZoteroItemForURIs = async function (uris)
 			replacer = await Zotero.Relations.getByPredicateAndObject(
 				'item', 'mendeleyDB:documentUUID', m[1]
 			);
-			if (replacer.length && !replacer[0].deleted) {
-				zoteroItem = replacer[0];
-				break;
+			if (replacer.length) {
+				if (!replacer[0].deleted) {
+					zoteroItem = replacer[0];
+					break;
+				}
 			}
-		}
+			// If not blocked by user having pressed skip in this session,
+			// or user having checked the checkbox to not be prompted about this,
+			// or user having imported their library with the new version of importer
+			else if (!(this.session.dontPromptForMendeley
+				|| Zotero.Prefs.get('integration.dontPromptMendeleyImport')
+				|| await Zotero.DB.valueQueryAsync("SELECT value FROM settings WHERE setting='mendeleyImport' AND key='version'")
+			)) {
+				// Prompt user to (re)import their mendeley database which might make us recognize
+				// these items
+				let checkbox = {};
+				let result = Zotero.Prompt.confirm({
+					title: Zotero.getString('integration.mendeleyImport.title'),
+					text: Zotero.getString('integration.mendeleyImport.description', [Zotero.appName]),
+					button0: Zotero.getString('integration.mendeleyImport.openImporter'),
+					button1: Zotero.getString('general.skip'),
+					checkLabel: Zotero.getString('general.dontAskAgain'),
+					checkbox
+				});
+				if (result === 0) {
+					setTimeout(() => Zotero.getMainWindow().Zotero_File_Interface.showImportWizard({ pageID: 'page-mendeley-online-intro' }));
+					throw new Zotero.Exception.UserCancelled("Importing mendeley citations");
+				}
+				else {
+					this.session.dontPromptForMendeley = true;
+				}
+				if (checkbox.value) {
+					Zotero.Prefs.set('integration.dontPromptMendeleyImport', true);
+				}
+			}
+		};
 		
 	}
 	
diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index 25e339b113..7cbe8ec7ac 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -73,6 +73,7 @@ general.tryLater                 = Try Later
 general.showDirectory = Show Directory
 general.showInLibrary = Show in Library
 general.continue = Continue
+general.skip	        = Skip
 general.copy			= Copy
 general.copyToClipboard = Copy to Clipboard
 general.cancel			= Cancel
@@ -992,6 +993,9 @@ integration.exportDocument.description1 = Zotero will convert citations in the d
 integration.exportDocument.description2 = You should make a backup of the document before proceeding.
 integration.importInstructions = The Zotero citations in this document have been converted to a format that can be safely transferred between word processors. Open this document in a supported word processor and press Refresh in the Zotero plugin to continue working with the citations.
 integration.upgradeTemplate = The %S plugin for %S is outdated. Reinstall the plugin from Preferences → Cite → Word Processors.
+integration.mendeleyImport.title          = Missing Mendeley Data
+integration.mendeleyImport.description    = %1$S detected that the document you are citing with contains Mendeley citations. %1$S will be able to manage these citations if you import your Mendeley database.
+integration.mendeleyImport.openImporter   = Open Mendeley Importer...
 
 styles.install.title				= Install Style
 styles.install.unexpectedError		= An unexpected error occurred while installing "%1$S"
diff --git a/components/zotero-service.js b/components/zotero-service.js
index f09160fb99..ae0ccc6d67 100644
--- a/components/zotero-service.js
+++ b/components/zotero-service.js
@@ -53,6 +53,7 @@ const xpcomFilesAll = [
 	'mimeTypeHandler',
 	'pdfWorker/manager',
 	'ipc',
+	'prompt',
 	'profile',
 	'progressWindow',
 	'proxy',
diff --git a/defaults/preferences/zotero.js b/defaults/preferences/zotero.js
index 124473cea2..59793b91ea 100644
--- a/defaults/preferences/zotero.js
+++ b/defaults/preferences/zotero.js
@@ -135,6 +135,7 @@ pref("extensions.zotero.integration.autoRegenerate", -1);	// -1 = ask; 0 = no; 1
 pref("extensions.zotero.integration.useClassicAddCitationDialog", false);
 pref("extensions.zotero.integration.keepAddCitationDialogRaised", false);
 pref("extensions.zotero.integration.upgradeTemplateDelayedOn", 0);
+pref("extensions.zotero.integration.dontPromptMendeleyImport", false);
 
 // Connector settings
 pref("extensions.zotero.httpServer.enabled", true);