diff --git a/Optional-Hardening.md b/Optional-Hardening.md
index 301fc97..6d2cb7a 100644
--- a/Optional-Hardening.md
+++ b/Optional-Hardening.md
@@ -13,6 +13,7 @@
 * For cross-domain logins, add exceptions for both sites
     * e.g. `https://www.youtube.com` (site) + `https://accounts.google.com` (single sign on)
 
+Also consider changing [`browser.sessionstore.privacy_level`](https://github.com/yokoffing/Betterfox/blob/ac69c81e8a61a46df579e9be6cb1cc3dcbac4c0b/Securefox.js#L377-L381) to `2`.
 ***
 
 ## Overrides