diff --git a/core/modules/simpletest/src/BrowserTestBase.php b/core/modules/simpletest/src/BrowserTestBase.php
index a2bf771e0ae7d381499b5c1847713b342e2602bb..3692cfdd361db477a00a101638358ae0c515208a 100644
--- a/core/modules/simpletest/src/BrowserTestBase.php
+++ b/core/modules/simpletest/src/BrowserTestBase.php
@@ -41,11 +41,6 @@
  * Drupal\Tests\yourmodule\Functional namespace and live in the
  * modules/yourmodule/Tests/Functional directory.
  *
- * All BrowserTestBase tests must have two annotations to ensure process
- * isolation:
- * - @runTestsInSeparateProcesses
- * - @preserveGlobalState disabled
- *
  * @ingroup testing
  *
  * @see \Drupal\simpletest\WebTestBase
@@ -216,6 +211,19 @@ abstract class BrowserTestBase extends \PHPUnit_Framework_TestCase {
    */
   protected $mink;
 
+  /**
+   * {@inheritdoc}
+   *
+   * Browser tests are run in separate processes to prevent collisions between
+   * code that may be loaded by tests.
+   */
+  protected $runTestInSeparateProcess = TRUE;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $preserveGlobalState = FALSE;
+
   /**
    * Initializes Mink sessions.
    */
diff --git a/core/modules/simpletest/tests/src/Functional/BrowserTestBaseTest.php b/core/modules/simpletest/tests/src/Functional/BrowserTestBaseTest.php
index 48865e1e36890c2cd87365de9b90ce9f0e918321..c082d0372abb0c9499b9c504f9c92fda9ab50b78 100644
--- a/core/modules/simpletest/tests/src/Functional/BrowserTestBaseTest.php
+++ b/core/modules/simpletest/tests/src/Functional/BrowserTestBaseTest.php
@@ -13,9 +13,6 @@
  * Tests BrowserTestBase functionality.
  *
  * @group simpletest
- *
- * @runTestsInSeparateProcesses
- * @preserveGlobalState disabled
  */
 class BrowserTestBaseTest extends BrowserTestBase {
 
diff --git a/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php b/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
index 71c90bf5f27e1a0a7e474c05a08d996b40bdc062..7eb807f5376f29f645f7ad0f2776d69640faed61 100644
--- a/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
+++ b/core/tests/Drupal/Tests/Core/Form/FormCacheTest.php
@@ -14,8 +14,6 @@
 /**
  * @coversDefaultClass \Drupal\Core\Form\FormCache
  * @group Form
- * @runTestsInSeparateProcesses
- * @preserveGlobalState disabled
  */
 class FormCacheTest extends UnitTestCase {
 
@@ -89,6 +87,16 @@ class FormCacheTest extends UnitTestCase {
    */
   protected $requestPolicy;
 
+  /**
+   * {@inheritdoc}
+   */
+  protected $runTestInSeparateProcess = TRUE;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $preserveGlobalState = FALSE;
+
   /**
    * {@inheritdoc}
    */