diff --git a/test/selenium/TestBase.php b/test/selenium/TestBase.php
index 429d27cbc0..810e9aac9b 100644
--- a/test/selenium/TestBase.php
+++ b/test/selenium/TestBase.php
@@ -440,6 +440,20 @@ abstract class PMA_SeleniumBase extends PHPUnit_Extensions_Selenium2TestCase
      */
     public function typeInTextArea($text)
     {
+        /**
+         * Firefox needs some escaping of a text, see
+         * http://code.google.com/p/selenium/issues/detail?id=1723
+         */
+        if (strtolower($this->getBrowser()) == 'firefox') {
+            $text = str_replace(
+                "(",
+                PHPUnit_Extensions_Selenium2TestCase_Keys::SHIFT
+                . PHPUnit_Extensions_Selenium2TestCase_Keys::NUMPAD9
+                . PHPUnit_Extensions_Selenium2TestCase_Keys::NULL,
+                $text
+            );
+        }
+
         $this->byClassName("CodeMirror-scroll")->click();
         $this->keys($text);
     }