--- a/browser/base/content/content.js
+++ b/browser/base/content/content.js
@@ -7,28 +7,30 @@
  * depend on the frame being contained in tabbrowser. */
 
 /* eslint-env mozilla/frame-script */
 
 var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/InlineSpellChecker.jsm");
-Cu.import("resource://gre/modules/InlineSpellCheckerContent.jsm");
 Cu.import("resource://gre/modules/Task.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this, "E10SUtils",
   "resource:///modules/E10SUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
   "resource://gre/modules/BrowserUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "ContentLinkHandler",
   "resource:///modules/ContentLinkHandler.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "ContentWebRTC",
   "resource:///modules/ContentWebRTC.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "SpellCheckHelper",
+  "resource://gre/modules/InlineSpellChecker.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "InlineSpellCheckerContent",
+  "resource://gre/modules/InlineSpellCheckerContent.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "LoginManagerContent",
   "resource://gre/modules/LoginManagerContent.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "LoginFormFactory",
   "resource://gre/modules/LoginManagerContent.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "InsecurePasswordUtils",
   "resource://gre/modules/InsecurePasswordUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PluginContent",
   "resource:///modules/PluginContent.jsm");