diff --git a/src/Http/CookieFactory.php b/src/Http/CookieFactory.php
index 868db278c..aacaff7f5 100644
--- a/src/Http/CookieFactory.php
+++ b/src/Http/CookieFactory.php
@@ -45,7 +45,7 @@ class CookieFactory
         // Parse the forum's base URL so that we can determine the optimal cookie settings
         $url = parse_url(rtrim($this->app->url(), '/'));
 
-        $cookie = SetCookie::create($name, $value);
+        $cookie = SetCookie::create($this->getName($name), $value);
 
         // Make sure we send both the MaxAge and Expires parameters (the former
         // is not supported by all browser versions)
@@ -55,9 +55,38 @@ class CookieFactory
                 ->withExpires(time() + $maxAge);
         }
 
+        if ($domain = $this->app->config('cookie.domain')) {
+            $cookie = $cookie->withDomain($domain);
+        }
+
+        $path = $this->app->config('cookie.path', array_get($url, 'path') ?: '/');
+        $secure = $this->app->config('cookie.secure', array_get($url, 'scheme') === 'https');
+
         return $cookie
-            ->withPath(array_get($url, 'path') ?: '/')
-            ->withSecure(array_get($url, 'scheme') === 'https')
+            ->withPath($path)
+            ->withSecure($secure)
             ->withHttpOnly(true);
     }
+
+    /**
+     * Make an expired cookie instance.
+     *
+     * @param string $name
+     * @return \Dflydev\FigCookies\SetCookie
+     */
+    public function expire($name)
+    {
+        return $this->make($name)->expire();
+    }
+
+    /**
+     * Get a cookie name.
+     *
+     * @param string $name
+     * @return string
+     */
+    public function getName($name)
+    {
+        return $this->app->config('cookie.name', 'flarum').'_'.$name;
+    }
 }
diff --git a/src/Http/Middleware/StartSession.php b/src/Http/Middleware/StartSession.php
index 9c6060bfc..bf714c99e 100644
--- a/src/Http/Middleware/StartSession.php
+++ b/src/Http/Middleware/StartSession.php
@@ -22,13 +22,14 @@ use Zend\Stratigility\MiddlewareInterface;
 
 class StartSession implements MiddlewareInterface
 {
+    const COOKIE_NAME = 'session';
+
     /**
      * @var CookieFactory
      */
     protected $cookie;
 
     /**
-     * Rememberer constructor.
      * @param CookieFactory $cookie
      */
     public function __construct(CookieFactory $cookie)
@@ -56,7 +57,7 @@ class StartSession implements MiddlewareInterface
     {
         $session = new Session;
 
-        $session->setName('flarum_session');
+        $session->setName($this->cookie->getName(self::COOKIE_NAME));
         $session->start();
 
         if (! $session->has('csrf_token')) {
@@ -79,7 +80,7 @@ class StartSession implements MiddlewareInterface
     {
         return FigResponseCookies::set(
             $response,
-            $this->cookie->make($session->getName(), $session->getId())
+            $this->cookie->make(self::COOKIE_NAME, $session->getId())
         );
     }
 }
diff --git a/src/Http/Rememberer.php b/src/Http/Rememberer.php
index a014c99d9..d331d796c 100644
--- a/src/Http/Rememberer.php
+++ b/src/Http/Rememberer.php
@@ -16,7 +16,7 @@ use Psr\Http\Message\ResponseInterface;
 
 class Rememberer
 {
-    protected $cookieName = 'flarum_remember';
+    const COOKIE_NAME = 'remember';
 
     /**
      * @var CookieFactory
@@ -43,7 +43,7 @@ class Rememberer
 
         return FigResponseCookies::set(
             $response,
-            $this->cookie->make($this->cookieName, $token->id, $lifetime)
+            $this->cookie->make(self::COOKIE_NAME, $token->id, $lifetime)
         );
     }
 
@@ -56,6 +56,9 @@ class Rememberer
 
     public function forget(ResponseInterface $response)
     {
-        return FigResponseCookies::expire($response, $this->cookieName);
+        return FigResponseCookies::set(
+            $response,
+            $this->cookie->expire(self::COOKIE_NAME)
+        );
     }
 }