diff --git a/lib/private/request.php b/lib/private/request.php
index d9d5ae08e2..855148ac25 100755
--- a/lib/private/request.php
+++ b/lib/private/request.php
@@ -11,6 +11,7 @@ class OC_Request {
 	const USER_AGENT_IE = '/MSIE/';
 	// Android Chrome user agent: https://developers.google.com/chrome/mobile/docs/user-agent
 	const USER_AGENT_ANDROID_MOBILE_CHROME = '#Android.*Chrome/[.0-9]*#';
+	const USER_AGENT_FREEBOX = '#Mozilla/5\.0$#';
 
 	/**
 	 * @brief Check overwrite condition
diff --git a/lib/private/response.php b/lib/private/response.php
index 0474643734..52dbb9d90f 100644
--- a/lib/private/response.php
+++ b/lib/private/response.php
@@ -153,7 +153,11 @@ class OC_Response {
 	 * @param string $type disposition type, either 'attachment' or 'inline'
 	 */
 	static public function setContentDispositionHeader( $filename, $type = 'attachment' ) {
-		if (OC_Request::isUserAgent(array(OC_Request::USER_AGENT_IE, OC_Request::USER_AGENT_ANDROID_MOBILE_CHROME))) {
+		if (OC_Request::isUserAgent(array(
+				OC_Request::USER_AGENT_IE,
+				OC_Request::USER_AGENT_ANDROID_MOBILE_CHROME,
+				OC_Request::USER_AGENT_FREEBOX
+			))) {
 			header( 'Content-Disposition: ' . rawurlencode($type) . '; filename="' . rawurlencode( $filename ) . '"' );
 		} else {
 			header( 'Content-Disposition: ' . rawurlencode($type) . '; filename*=UTF-8\'\'' . rawurlencode( $filename )