diff --git a/Optional-Hardening.md b/Optional-Hardening.md
index 4f9f668..63a0a2d 100644
--- a/Optional-Hardening.md
+++ b/Optional-Hardening.md
@@ -27,6 +27,21 @@ user_pref("browser.firefox-view.feature-tour", "{\"screen\":\"\",\"complete\":tr
 
 ***
 
+### Password management across devices
+If you use a password manager, disable saving passwords, credit cards, and addresses.
+
+We recommend using [Bitwarden](https://addons.mozilla.org/en-US/firefox/addon/bitwarden-password-manager/) or [1Password](https://addons.mozilla.org/en-US/firefox/addon/1password-x-password-manager) to manage your credentials on multiple devices.
+```javascript
+// PREF: disable password manager
+user_pref("signon.rememberSignons", false);
+
+// PREF: disable address and credit card manager
+user_pref("extensions.formautofill.addresses.enabled", false);
+user_pref("extensions.formautofill.creditCards.enabled", false);
+```
+
+***
+
 ### Public Key Pinning
 [Public Key Pinning](https://wiki.mozilla.org/SecurityEngineering/Public_Key_Pinning) (PKP) is a tool that boosts the safety of [SSL certificates](https://www.cloudflare.com/learning/ssl/what-is-an-ssl-certificate/) by linking a website to its unique security key. This process ensures that the website you're visiting is real and not fake. PKP stops any attempts to trick your computer into connecting with a fraudulent website.