1 files changed, 79 insertions, 0 deletions
diff --git a/browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js b/browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js
new file mode 100644
index 0000000000..e92a363dee
--- /dev/null
+++ b/browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js
@@ -0,0 +1,79 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_PATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "http://example.com"
+);
+
+/**
+ * Back/fwd buttons should be re-enabled after customizing.
+ */
+add_task(async function test_back_forward_buttons() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["browser.navigation.requireUserInteraction", false]],
+  });
+  let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, TEST_PATH);
+  let loaded = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+  BrowserTestUtils.loadURIString(
+    tab.linkedBrowser,
+    "data:text/html,A separate page"
+  );
+  await loaded;
+  loaded = BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+  BrowserTestUtils.loadURIString(
+    tab.linkedBrowser,
+    "data:text/html,Another separate page"
+  );
+  await loaded;
+  gBrowser.goBack();
+  await BrowserTestUtils.waitForCondition(() => gBrowser.canGoForward);
+
+  let backButton = document.getElementById("back-button");
+  let forwardButton = document.getElementById("forward-button");
+
+  await BrowserTestUtils.waitForCondition(
+    () =>
+      !backButton.hasAttribute("disabled") &&
+      !forwardButton.hasAttribute("disabled")
+  );
+
+  ok(!backButton.hasAttribute("disabled"), "Back button shouldn't be disabled");
+  ok(
+    !forwardButton.hasAttribute("disabled"),
+    "Forward button shouldn't be disabled"
+  );
+  await startCustomizing();
+
+  is(
+    backButton.getAttribute("disabled"),
+    "true",
+    "Back button should be disabled in customize mode"
+  );
+  is(
+    forwardButton.getAttribute("disabled"),
+    "true",
+    "Forward button should be disabled in customize mode"
+  );
+
+  await endCustomizing();
+
+  await BrowserTestUtils.waitForCondition(
+    () =>
+      !backButton.hasAttribute("disabled") &&
+      !forwardButton.hasAttribute("disabled")
+  );
+
+  ok(
+    !backButton.hasAttribute("disabled"),
+    "Back button shouldn't be disabled after customize mode"
+  );
+  ok(
+    !forwardButton.hasAttribute("disabled"),
+    "Forward button shouldn't be disabled after customize mode"
+  );
+
+  BrowserTestUtils.removeTab(tab);
+});