--- a/devtools/client/sourceeditor/editor.js
+++ b/devtools/client/sourceeditor/editor.js
@@ -1288,17 +1288,16 @@ Editor.prototype = {
   },
     /**
    * Key shortcut listener.
    */
   _onShortcut: function (name, event) {
     if (!this._isInputOrTextarea(event.target)) {
       return;
     }
-    let cm = editors.get(this);
     let node = event.originalTarget;
 
     switch (name) {
       // replaceAll.key is Alt + find.key
       case "replaceAllMac.key":
         this.findOrReplace(node, true);
         break;
       // replaceAll.key is Shift + find.key

--- a/toolkit/mozapps/extensions/test/xpcshell/test_webextension.js
+++ b/toolkit/mozapps/extensions/test/xpcshell/test_webextension.js
@@ -396,9 +396,9 @@ add_task(function* developerEmpty() {
       }
     });
 
     addon = yield promiseAddonByID(addon.id);
     equal(addon.creator, "Some author");
     equal(addon.homepageURL, "https://example.net");
     addon.uninstall();
   }
-});
\ No newline at end of file
+});