diff --git a/chrome/content/zotero/integration/quickFormat.js b/chrome/content/zotero/integration/quickFormat.js
index ff21c4a69d..351e63c1f5 100644
--- a/chrome/content/zotero/integration/quickFormat.js
+++ b/chrome/content/zotero/integration/quickFormat.js
@@ -180,11 +180,16 @@ var Zotero_QuickFormat = new function () {
 			// load citation data
 			if (io.citation.citationItems.length) {
 				// hack to get spacing right
-				var evt = qfiDocument.createEvent("KeyboardEvent");
-				evt.initKeyEvent("keypress", true, true, qfiWindow,
-					0, 0, 0, 0,
-					0, " ".charCodeAt(0));
-				qfe.dispatchEvent(evt);
+				let event = new KeyboardEvent(
+					"keypress",
+					{
+						key: " ",
+						code: "Space",
+						bubbles: true,
+						cancelable: true,
+					}
+				);
+				qfe.dispatchEvent(event);
 				await resizePromise;
 				var node = qfe.firstChild;
 				node.nodeValue = "";
diff --git a/test/tests/zoteroPaneTest.js b/test/tests/zoteroPaneTest.js
index defb69e390..800601a8a9 100644
--- a/test/tests/zoteroPaneTest.js
+++ b/test/tests/zoteroPaneTest.js
@@ -465,18 +465,15 @@ describe("ZoteroPane", function() {
 			var promise = waitForDialog();
 			var modifyPromise = waitForItemEvent('modify');
 			
-			var event = doc.createEvent("KeyboardEvent");
-			event.initKeyEvent(
+			var event = new KeyboardEvent(
 				"keypress",
-				true,
-				true,
-				window,
-				false,
-				false,
-				false,
-				false,
-				DELETE_KEY_CODE,
-				0
+				{
+					key: 'Delete',
+					code: 'Delete',
+					keyCode: DELETE_KEY_CODE,
+					bubbles: true,
+					cancelable: true
+				}
 			);
 			tree.dispatchEvent(event);
 			yield promise;
@@ -506,18 +503,17 @@ describe("ZoteroPane", function() {
 			var promise = waitForDialog();
 			var modifyPromise = waitForItemEvent('modify');
 			
-			var event = doc.createEvent("KeyboardEvent");
-			event.initKeyEvent(
+			var event = new KeyboardEvent(
 				"keypress",
-				true,
-				true,
-				window,
-				false,
-				false,
-				!Zotero.isMac, // shift
-				Zotero.isMac, // meta
-				DELETE_KEY_CODE,
-				0
+				{
+					key: 'Delete',
+					code: 'Delete',
+					keyCode: DELETE_KEY_CODE,
+					bubbles: true,
+					cancelable: true,
+					shiftKey: !Zotero.isMac,
+					metaKey: Zotero.isMac,
+				}
 			);
 			tree.dispatchEvent(event);
 			yield promise;
@@ -588,9 +584,9 @@ describe("ZoteroPane", function() {
 				{
 					key: 'Delete',
 					code: 'Delete',
+					keyCode: DELETE_KEY_CODE,
 					metaKey: Zotero.isMac,
 					shiftKey: !Zotero.isMac,
-					keyCode: DELETE_KEY_CODE,
 					bubbles: true,
 					cancelable: true
 				}