1 files changed, 30 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_892955_isWidgetRemovable_for_removed_widgets.js b/browser/components/customizableui/test/browser_892955_isWidgetRemovable_for_removed_widgets.js
new file mode 100644
index 0000000000..7584c52bb6
--- /dev/null
+++ b/browser/components/customizableui/test/browser_892955_isWidgetRemovable_for_removed_widgets.js
@@ -0,0 +1,30 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const kWidgetId = "test-892955-remove-widget";
+
+// Removing a destroyed widget should work.
+add_task(async function () {
+  let widgetSpec = {
+    id: kWidgetId,
+    defaultArea: CustomizableUI.AREA_NAVBAR,
+  };
+
+  CustomizableUI.createWidget(widgetSpec);
+  CustomizableUI.destroyWidget(kWidgetId);
+  let noError = true;
+  try {
+    CustomizableUI.removeWidgetFromArea(kWidgetId);
+  } catch (ex) {
+    noError = false;
+    console.error(ex);
+  }
+  ok(noError, "Shouldn't throw an error removing a destroyed widget.");
+});
+
+add_task(async function asyncCleanup() {
+  await resetCustomization();
+});