diff --git a/core/tests/Drupal/Tests/LegacyBrowserTestBase.php b/core/tests/Drupal/Tests/LegacyBrowserTestBase.php
new file mode 100644
index 0000000..ab24d49
--- /dev/null
+++ b/core/tests/Drupal/Tests/LegacyBrowserTestBase.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Drupal\Tests;
+
+
+/**
+ * Adds a browser test base, which includes every possible BC layer.
+ */
+abstract class LegacyBrowserTestBase extends BrowserTestBase {
+
+}