diff --git a/core/modules/simpletest/src/BrowserTestBase.php b/core/modules/simpletest/src/BrowserTestBase.php
index e15078c..bcf0ddd 100644
--- a/core/modules/simpletest/src/BrowserTestBase.php
+++ b/core/modules/simpletest/src/BrowserTestBase.php
@@ -182,6 +182,20 @@
    */
   protected $customTranslations;
 
+  /*
+   * Mink FQNC for the default driver to use.
+   *
+   * @var string.
+   */
+  protected $minkDriverFQCN = '\Behat\Mink\Driver\GoutteDriver';
+
+  /*
+   * Mink default driver params.
+   *
+   * @var array
+   */
+  protected $minkDriverArgs = array();
+
   /**
    * Mink session manager.
    *
@@ -193,16 +207,51 @@
    * Initializes Mink sessions.
    */
   protected function initMink() {
-    $driver = new GoutteDriver();
+    $driver = $this->getDefaultDriverInstance();
     $session = new Session($driver);
     $this->mink = new Mink();
-    $this->mink->registerSession('goutte', $session);
-    $this->mink->setDefaultSessionName('goutte');
+    $this->mink->registerSession('default', $session);
+    $this->mink->setDefaultSessionName('default');
     $this->registerSessions();
     return $session;
   }
 
   /**
+   * Gets an instance of the default Mink driver.
+   *
+   * @return \Drupal\simpletest\minkDriverFQCN
+   *   Instance of default Mink driver.
+   *
+   * @throws \InvalidArgumentException
+   *   When provided default Mink driver class can't be instantiated.
+   */
+  protected function getDefaultDriverInstance() {
+    // Get default driver params from environment if availables.
+    if ($arg_json = getenv('MINK_DRIVER_ARGS')) {
+      $this->minkDriverArgs = json_decode($arg_json);
+    }
+
+    // Get and check default driver class from environment if availables.
+    if ($minkDriverFQCN = getenv('MINK_DRIVER_FQCN')) {
+      if (class_exists($minkDriverFQCN)) {
+        $this->minkDriverFQCN = $minkDriverFQCN;
+      }
+      else {
+        throw new \InvalidArgumentException("Can't instantiate provided $minkDriverFQCN class by environment as default driver class.");
+      }
+    }
+
+    if (is_array($this->minkDriverArgs)) {
+      $reflector = new ReflectionClass($this->minkDriverArgs);
+      $driver = $reflector->newInstanceArgs($this->minkDriverFQCN);
+    }
+    else {
+      $driver =  new $this->minkDriverFQCN();
+    }
+    return $driver;
+  }
+
+  /**
    * Registers additional Mink sessions.
    *
    * Tests wishing to use a different driver or change the default driver should