1 files changed, 29 insertions, 0 deletions
diff --git a/browser/components/preferences/tests/browser_about_settings.js b/browser/components/preferences/tests/browser_about_settings.js
new file mode 100644
index 0000000000..3ffd75eeef
--- /dev/null
+++ b/browser/components/preferences/tests/browser_about_settings.js
@@ -0,0 +1,29 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function test_openPreferences_aboutSettings() {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: "about:settings",
+    },
+    async () => {
+      is(
+        gBrowser.currentURI.spec,
+        "about:settings",
+        "about:settings should open normally"
+      );
+
+      //  using `openPreferencesViaOpenPreferencesAPI` would introduce an extra about:blank tab we need to take care of
+      await openPreferences("paneGeneral");
+
+      is(
+        gBrowser.currentURI.spec,
+        "about:settings#general",
+        "openPreferences should keep about:settings"
+      );
+    }
+  );
+});