diff --git a/lib/data/gecko-prefs.js b/lib/data/gecko-prefs.js
index ad2563da..f4d09ca7 100644
--- a/lib/data/gecko-prefs.js
+++ b/lib/data/gecko-prefs.js
@@ -100,7 +100,13 @@ user_pref("font.size.fixed.zh-TW", 12);
 user_pref("font.size.variable.zh-HK", 12);
 user_pref("font.size.fixed.zh-HK", 12);
 
+// Font families for Arabic
+
+user_pref("font.name.cursive.ar", "KacstQurn");
+user_pref("font.name.fantasy.ar", "KacstDecorative");
+user_pref("font.name.monospace.ar", "KacstDigital");
+user_pref("font.name.sans-serif.ar", "KacstQurn");
+user_pref("font.name.serif.ar", "KacstBook");
+
 // Enable error pages (xulrunner is missing this pref)
-pref("browser.xul.error_pages.enabled", true);
-
-
+user_pref("browser.xul.error_pages.enabled", true);