diff --git a/firefox/user.js b/firefox/user.js
index a635d7d..a6e92d1 100755
--- a/firefox/user.js
+++ b/firefox/user.js
@@ -1,6 +1,6 @@
 // Mozilla User Preferences
 //
-// 2020/11/04
+// 2021/01/03
 //
 // Based on Privacy-Handbuch, merged/adjusted strong user.js
 // Download: https://www.privacy-handbuch.de/handbuch_21u.htm
@@ -14,7 +14,6 @@ user_pref("beacon.enabled", false);
 user_pref("browser.cache.disk.enable", false);
 user_pref("browser.cache.disk_cache_ssl", false);
 user_pref("browser.cache.offline.enable", false);
-user_pref("browser.contentblocking.category", "strict");
 //user_pref("browser.display.use_document_fonts", 0);
 // Disable to disallow playback of DRM content
 user_pref("browser.eme.ui.enabled", true);
@@ -68,7 +67,8 @@ user_pref("browser.sessionstore.max_windows_undo", 0);
 user_pref("browser.sessionstore.privacy_level", 2);
 user_pref("browser.slowStartup.notificationDisabled", true);
 user_pref("browser.slowStartup.maxSamples", 0);
-user_pref("browser.startup.page", 0);
+// 0 = blank page, 1 = home pages, 2 = last visited, 3 = resume previous session
+user_pref("browser.startup.page", 3);
 user_pref("browser.startup.homepage_override.mstone", "ignore");
 user_pref("browser.tabs.crashReporting.sendReport", false);
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
@@ -85,10 +85,9 @@ user_pref("device.sensors.enabled", false);
 //user_pref("dom.enable_resource_timing", false);
 //user_pref("dom.event.clipboardevents.enabled", false);
 user_pref("dom.gamepad.enabled", false);
-//user_pref("dom.min_timeout_value", 4);
-//user_pref("dom.push.connection.enabled", false);
-//user_pref("dom.push.enabled", false);
-//user_pref("dom.push.serverURL", "");
+user_pref("dom.push.connection.enabled", false);
+user_pref("dom.push.enabled", false);
+user_pref("dom.push.serverURL", "");
 user_pref("dom.security.https_only_mode", true);
 //user_pref("dom.security.https_only_mode_ever_enabled", true);
 user_pref("dom.webnotifications.enabled", false);
@@ -115,9 +114,9 @@ user_pref("extensions.webextensions.restrictedDomains", "");
 //user_pref("layout.css.font-loading-api.enabled", false);
 //user_pref("layout.css.visited_links_enabled", false);
 user_pref("media.autoplay.default", 5);
+user_pref("media.autoplay.blocking_policy", 2);
 user_pref("media.cache_size", 0);
 user_pref("media.eme.enabled", false);
-//user_pref("media.gmp-provider.enabled", false);
 //user_pref("media.gmp-gmpopenh264.enabled", false);
 //user_pref("media.gmp-gmpopenh264.autoupdate", false);
 //user_pref("media.gmp-gmpopenh264.provider.enabled", false);
@@ -133,9 +132,7 @@ user_pref("network.dns.disableIPv6", false);
 user_pref("network.ftp.enabled", false);
 user_pref("network.captive-portal-service.enabled", false);
 user_pref("network.connectivity-service.enabled", false);
-user_pref("network.cookie.cookieBehavior", 4);
-user_pref("network.cookie.lifetimePolicy", 0);
-user_pref("network.cookie.thirdparty.sessionOnly", false);
+user_pref("network.cookie.lifetimePolicy", 2);
 user_pref("network.http.altsvc.enabled", false);
 user_pref("network.http.altsvc.oe", false);
 user_pref("network.http.referer.XOriginPolicy", 2);
@@ -155,7 +152,6 @@ user_pref("privacy.clearOnShutdown.cookies", true);
 user_pref("privacy.clearOnShutdown.downloads", true);
 user_pref("privacy.clearOnShutdown.history", false);
 user_pref("privacy.clearOnShutdown.offlineApps", true);
-user_pref("privacy.clearOnShutdown.openWindows", false);
 user_pref("privacy.clearOnShutdown.sessions", true);
 user_pref("privacy.clearOnShutdown.formdata", true);
 user_pref("privacy.clearOnShutdown.siteSettings", true);
@@ -167,15 +163,13 @@ user_pref("privacy.firstparty.isolate", true);
 user_pref("privacy.firstparty.isolate.block_post_message", true);
 user_pref("privacy.history.custom", true);
 user_pref("privacy.purge_trackers.enabled", true);
-user_pref("privacy.sanitize.migrateClearSavedPwdsOnExit", true);
 user_pref("privacy.sanitize.sanitizeOnShutdown", true);
 user_pref("privacy.userContext.enabled", true);
 user_pref("privacy.userContext.ui.enabled", true);
-user_pref("privacy.usercontext.about_newtab_segregation.enabled", true);
-// prevent wrong dates
 user_pref("privacy.resistFingerprinting", false);
 user_pref("reader.parse-on-load.enabled", false);
 user_pref("security.cert_pinning.enforcement_level", 2);
+user_pref("security.certerrors.mitm.auto_enable_enterprise_roots", false);
 user_pref("security.family_safety.mode", 0);
 user_pref("security.identityblock.show_extended_validation", true);
 user_pref("security.insecure_connection_icon.enabled", true);
@@ -201,7 +195,6 @@ user_pref("toolkit.telemetry.newProfilePing.enabled", false);
 user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);
 user_pref("toolkit.telemetry.updatePing.enabled", false);
 user_pref("toolkit.telemetry.unified", false);
-user_pref("toolkit.telemetry.infoURL", "");
 user_pref("ui.use_standins_for_native_colors", true);
 user_pref("ui.systemUsesDarkTheme", 0);
 user_pref("webgl.disabled", false);