diff --git a/chrome/content/zotero/note.js b/chrome/content/zotero/note.js
index 0b6c101c1b..45e91c80fe 100644
--- a/chrome/content/zotero/note.js
+++ b/chrome/content/zotero/note.js
@@ -41,7 +41,6 @@ async function onLoad() {
 	}
 	
 	let itemID = parseInt(io.itemID);
-	let collectionIDs = io.collectionIDs.split(",").filter(x => x).map(x => parseInt(x));
 	let parentItemKey = io.parentItemKey;
 	let ref;
 
@@ -65,10 +64,6 @@ async function onLoad() {
 			ref = Zotero.Items.getByLibraryAndKey(parentItemKey);
 			noteEditor.parentItem = ref;
 		}
-		else if (collectionIDs.length) {
-			// DEBUG: Was 'collection', but seemingly unused?
-			noteEditor.collections = Zotero.Collections.get(collectionIDs);
-		}
 		noteEditor.refresh();
 	}
 	
diff --git a/chrome/content/zotero/xpcom/data/notes.js b/chrome/content/zotero/xpcom/data/notes.js
index 738b6f923d..092e582479 100644
--- a/chrome/content/zotero/xpcom/data/notes.js
+++ b/chrome/content/zotero/xpcom/data/notes.js
@@ -43,7 +43,7 @@ Zotero.Notes = new function () {
 	 * @returns {Promise<Zotero.EditorInstance | null>} Instance of Zotero.EditorInstance for the note.
 	 * If the note tab is opened in background (unloaded), returns null.
 	 */
-	this.open = async function (itemID, location, { title, tabIndex, tabID, openInBackground, openInWindow, allowDuplicate, preventJumpback, parentItemKey, collections } = {}) {
+	this.open = async function (itemID, location, { title, tabIndex, tabID, openInBackground, openInWindow, allowDuplicate, preventJumpback, parentItemKey } = {}) {
 		let { libraryID } = Zotero.Items.getLibraryAndKeyFromID(itemID);
 		let library = Zotero.Libraries.get(libraryID);
 		let win = Zotero.getMainWindow();
@@ -117,14 +117,10 @@ Zotero.Notes = new function () {
 		
 			if (itemID) {
 				// Create a name for this window so we can focus it later
-				//
-				// Collection is only used on new notes, so we don't need to
-				// include it in the name
 				name = 'zotero-note-' + itemID;
 			}
-			
-			let collectionIDs = collections ? collections.map(c => c.id).join(',') : '';
-			let io = { itemID, parentItemKey, collectionIDs, location, _initPromise: Zotero.Promise.defer() };
+
+			let io = { itemID, parentItemKey, location, _initPromise: Zotero.Promise.defer() };
 			Services.ww.openWindow(
 				win,
 				'chrome://zotero/content/note.xhtml',
diff --git a/chrome/content/zotero/zoteroPane.js b/chrome/content/zotero/zoteroPane.js
index d3c3b9ed2d..90c0f03b65 100644
--- a/chrome/content/zotero/zoteroPane.js
+++ b/chrome/content/zotero/zoteroPane.js
@@ -4787,14 +4787,7 @@ var ZoteroPane = new function () {
 		
 		if (popup) {
 			// TODO: _text_
-			let collections = this.getSelectedCollections();
-			this.openNote(
-				null,
-				{
-					collections: collections.length ? collections : undefined,
-					parentKey
-				}
-			);
+			this.openNote(null, { parentKey });
 			return null;
 		}
 		
@@ -4888,12 +4881,10 @@ var ZoteroPane = new function () {
 	
 	
 	this.openNote = function (itemID, options = {
-		collections: undefined,
 		parentKey: undefined,
 		openInWindow: undefined
 	}) {
 		let {
-			collections,
 			parentKey,
 			openInWindow,
 		} = options;
@@ -4903,7 +4894,6 @@ var ZoteroPane = new function () {
 
 		return Zotero.Notes.open(itemID, undefined, {
 			openInWindow,
-			collections,
 		});
 	};