diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index 23dab1dca12c..1a6353fa6116 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -377,3 +377,5 @@ pref("browser.display.screen_resolution", 96);
 
 pref("browser.download.show_plugins_in_list", true);
 pref("browser.download.hide_plugins_without_extensions", true);
+
+pref("browser.xul.error_pages.enabled", true);