diff --git a/user.js b/user.js
index fffcf4e..dc28e6f 100644
--- a/user.js
+++ b/user.js
@@ -1396,6 +1396,14 @@ user_pref("privacy.window.name.update.enabled", true);
 // Disable bypassing 3rd party extension install prompts [FF82+]
 // https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331 ***/
 user_pref("extensions.postDownloadThirdPartyPrompt", false);
+// -------------------------------------
+// Enforce non-native widget theme
+// * Security: removes/reduces system API calls, e.g. win32k API
+// * Fingerprinting: provides a uniform look and feel across platforms
+// * https://bugzilla.mozilla.org/1381938
+// * https://bugzilla.mozilla.org/1411425 ***/
+user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true FF89+]
+//
 // 
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // DOWNLOADS ***/
@@ -1465,7 +1473,7 @@ user_pref("fission.autostart", true);
 // [NOTE] Enforcing category to custom ensures ETP related prefs are always honored
 // [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Cookies
 // https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/
-user_pref("network.cookie.cookieBehavior", 1);
+user_pref("network.cookie.cookieBehavior", 5);
 user_pref("browser.contentblocking.category", "custom");
 // -------------------------------------
 // Set third-party cookies (i.e ALL) (if enabled) to session-only
@@ -1738,12 +1746,12 @@ user_pref("layout.css.font-visibility.level", 1);
 // >>>>>>>>>>>>>>>>>>>>>
 // Navigator DOM object overrides
 // [WARNING] DO NOT USE ***/
-// user_pref("general.appname.override", "Netscape"); // [HIDDEN PREF]
-// user_pref("general.appversion.override", "5.0 (Windows)"); // [HIDDEN PREF]
-// user_pref("general.buildID.override", "20100101"); // [HIDDEN PREF]
-// user_pref("general.oscpu.override", "Windows NT 6.1"); // [HIDDEN PREF]
-// user_pref("general.platform.override", "Win32"); // [HIDDEN PREF]
-// user_pref("general.useragent.override", "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0"); // [HIDDEN PREF]
+// user_pref("general.appname.override", ""); // [HIDDEN PREF]
+// user_pref("general.appversion.override", ""); // [HIDDEN PREF]
+user_pref("general.buildID.override", "20181001000000"); // [HIDDEN PREF]
+// user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
+// user_pref("general.platform.override", ""); // [HIDDEN PREF]
+user_pref("general.useragent.override", "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0"); // [HIDDEN PREF]
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // PERSONAL