1 files changed, 37 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_947914_button_find.js b/browser/components/customizableui/test/browser_947914_button_find.js
new file mode 100644
index 0000000000..c767239d9d
--- /dev/null
+++ b/browser/components/customizableui/test/browser_947914_button_find.js
@@ -0,0 +1,37 @@
+/* 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";
+
+add_task(async function () {
+  info("Check find button existence and functionality");
+  // The TabContextMenu initializes its strings only on a focus or mouseover event.
+  // Calls focus event on the TabContextMenu early in the test.
+  gBrowser.selectedTab.focus();
+  CustomizableUI.addWidgetToArea(
+    "find-button",
+    CustomizableUI.AREA_FIXED_OVERFLOW_PANEL
+  );
+  registerCleanupFunction(() => CustomizableUI.reset());
+
+  await waitForOverflowButtonShown();
+
+  await document.getElementById("nav-bar").overflowable.show();
+  info("Menu panel was opened");
+
+  let findButton = document.getElementById("find-button");
+  ok(findButton, "Find button exists in Panel Menu");
+
+  let findBarPromise = gBrowser.isFindBarInitialized()
+    ? null
+    : BrowserTestUtils.waitForEvent(gBrowser.selectedTab, "TabFindInitialized");
+
+  findButton.click();
+  await findBarPromise;
+  ok(!gFindBar.hasAttribute("hidden"), "Findbar opened successfully");
+
+  // close find bar
+  gFindBar.close();
+  info("Findbar was closed");
+});