diff --git a/chrome/content/zotero/locateMenu.js b/chrome/content/zotero/locateMenu.js
index 0a488ddd23..61ddaf49f4 100644
--- a/chrome/content/zotero/locateMenu.js
+++ b/chrome/content/zotero/locateMenu.js
@@ -23,7 +23,7 @@
     ***** END LICENSE BLOCK *****
 */
 
-ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs");
+var { XPCOMUtils } = ChromeUtils.importESModule("resource://gre/modules/XPCOMUtils.sys.mjs");
 
 /*
  * This object contains the various functions for the interface
diff --git a/chrome/content/zotero/xpcom/reader.js b/chrome/content/zotero/xpcom/reader.js
index 65497973c9..5a0f78c8cd 100644
--- a/chrome/content/zotero/xpcom/reader.js
+++ b/chrome/content/zotero/xpcom/reader.js
@@ -33,7 +33,7 @@ const ZipReader = Components.Constructor(
 	"open"
 );
 
-ChromeUtils.importESModule("resource://gre/modules/InlineSpellChecker.sys.mjs");
+var { InlineSpellChecker } = ChromeUtils.importESModule("resource://gre/modules/InlineSpellChecker.sys.mjs");
 
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Invalid_array_length
 const ARRAYBUFFER_MAX_LENGTH = Services.appinfo.is64Bit
diff --git a/chrome/content/zotero/xpcom/server/server.js b/chrome/content/zotero/xpcom/server/server.js
index c8db629c94..9a8b77f95b 100755
--- a/chrome/content/zotero/xpcom/server/server.js
+++ b/chrome/content/zotero/xpcom/server/server.js
@@ -24,7 +24,7 @@
 */
 
 var { HttpServer } = ChromeUtils.importESModule("chrome://remote/content/server/httpd.sys.mjs");
-ChromeUtils.importESModule("resource://gre/modules/NetUtil.sys.mjs");
+var { NetUtil } = ChromeUtils.importESModule("resource://gre/modules/NetUtil.sys.mjs");
 
 Zotero.Server = new function () {
 	var _onlineObserverRegistered, serv;