diff --git a/roles/home/files/user.js b/roles/home/files/user.js
index 3dfc3ce..7ad63e9 100644
--- a/roles/home/files/user.js
+++ b/roles/home/files/user.js
@@ -4,6 +4,7 @@ user_pref("browser.search.countryCode", "GB");
 user_pref("browser.search.region", "GB");
 user_pref("browser.search.suggest.enabled", false);
 user_pref("browser.startup.homepage", "about:blank");
+user_pref("browser.tabs.warnOnClose", true);
 user_pref("general.smoothScroll", false);
 user_pref("network.security.ports.banned.override", "6697");
 user_pref("privacy.resistFingerprinting", true);