diff --git a/src/Symfony/Bundle/FrameworkBundle/KernelBrowser.php b/src/Symfony/Bundle/FrameworkBundle/KernelBrowser.php
index 40381e34aa..dff1eea251 100644
--- a/src/Symfony/Bundle/FrameworkBundle/KernelBrowser.php
+++ b/src/Symfony/Bundle/FrameworkBundle/KernelBrowser.php
@@ -120,7 +120,7 @@ class KernelBrowser extends HttpKernelBrowser
             throw new \LogicException(sprintf('The first argument of "%s" must be instance of "%s", "%s" provided.', __METHOD__, UserInterface::class, \is_object($user) ? \get_class($user) : \gettype($user)));
         }
 
-        $token = new TestBrowserToken($user->getRoles(), $user);
+        $token = new TestBrowserToken($user->getRoles(), $user, $firewallContext);
         $token->setAuthenticated(true);
         $session = $this->getContainer()->get('session');
         $session->set('_security_'.$firewallContext, serialize($token));
diff --git a/src/Symfony/Bundle/FrameworkBundle/Test/TestBrowserToken.php b/src/Symfony/Bundle/FrameworkBundle/Test/TestBrowserToken.php
index 08f7b107d0..3343fbf0fb 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Test/TestBrowserToken.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Test/TestBrowserToken.php
@@ -21,13 +21,22 @@ use Symfony\Component\Security\Core\User\UserInterface;
  */
 class TestBrowserToken extends AbstractToken
 {
-    public function __construct(array $roles = [], UserInterface $user = null)
+    private $firewallName;
+
+    public function __construct(array $roles = [], UserInterface $user = null, string $firewallName = 'main')
     {
         parent::__construct($roles);
 
         if (null !== $user) {
             $this->setUser($user);
         }
+
+        $this->firewallName = $firewallName;
+    }
+
+    public function getFirewallName(): string
+    {
+        return $this->firewallName;
     }
 
     public function getCredentials()