diff --git a/home/nix/flake.lock b/home/nix/flake.lock
index 4e290a2..e452c03 100644
--- a/home/nix/flake.lock
+++ b/home/nix/flake.lock
@@ -60,11 +60,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1730651795,
-        "narHash": "sha256-XGYmN3WdyGU8FasWLPjL1Yvm9L9GJ0h62fMgCOPyvo0=",
+        "lastModified": 1731684989,
+        "narHash": "sha256-FQdoHR4vqYZlk2qp1jD3rtKufseLiPFr8rctGNY0d5Y=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "5012ef7926747f739c65bd2e1ceff96da30fb3b8",
+        "rev": "1c6112d535e8f51e40d8f68eb0565afb2944ebba",
         "type": "github"
       },
       "original": {
diff --git a/home/nix/programs/firefox.nix b/home/nix/programs/firefox.nix
index 61aba8c..5e89ef3 100644
--- a/home/nix/programs/firefox.nix
+++ b/home/nix/programs/firefox.nix
@@ -8,11 +8,44 @@
       Value = true;
       Status = "locked";
     };
-    nixGL = import ./nixGL.nix { inherit pkgs nixgl; };
   in
 {
   programs.firefox = {
     enable = true;
+    package = pkgs.firefox.override {
+      extraPrefs = ''
+        //
+
+        // Automatically click cookiebanners although uBlock Origin might block them
+        lockPref("cookiebanners.bannerClicking.enabled", true);
+        lockPref("cookiebanners.service.mode", 2);
+        lockPref("cookiebanners.service.mode.privateBrowsing", 2);
+
+        // DNT although PrivacyBadger from policy handles this
+        lockPref("privacy.donottrackheader.enabled", true);
+        lockPref("privacy.donottrackheader.value", 1);
+
+        // Fingerprinting
+        lockPref("privacy.fingerprintingProtection", true);
+        pref(
+        	"privacy.fingerprintingProtection.overrides",
+        	"+AllTargets,-KeyboardEvents,-SpeechSynthesis,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-NavigatorUserAgent,-JSDateTimeUTC,-HttpUserAgent",
+        );
+        lockPref("privacy.fingerprintingProtection.pbmode", true);
+        lockPref("privacy.resistFingerprinting", false);
+        lockPref("privacy.resistFingerprinting.block_mozAddonManage", true);
+        lockPref("privacy.resistFingerprinting.letterboxing", false);
+        clearPref("privacy.resistFingerprinting.pbmode");
+
+        // New sidebar
+        lockPref("sidebar.revamp", true);
+        lockPref("sidebar.verticalTabs", true);
+        lockPref("sidebar.visibility", "always-show");
+        lockPref("sidebar.main.tools", "");
+
+        //
+      '';
+    };
 
     policies = {
       EnableTrackingProtection = {
@@ -81,7 +114,7 @@
       # Start Page
       Homepage = {
         StartPage = "previous-session";
-        Loked = true;
+        Locked = true;
       };
 
       # Home Page
@@ -186,6 +219,10 @@
           Value = "firefox-compact-dark@mozilla.org";
           Status = "locked";
         };
+        "layout.css.prefers-color-scheme.content-override" = {
+          Value = 0;
+          Status = "locked";
+        };
         # homepage
         "browser.startup.homepage" = {
           Value = "	about:home";
@@ -243,6 +280,13 @@
         "browser.newtabpage.activity-stream.showSponsored" = lock-false;
         "browser.newtabpage.activity-stream.system.showSponsored" = lock-false;
         "browser.newtabpage.activity-stream.showSponsoredTopSites" = lock-false;
+        "browser.newtabpage.activity-stream.showWeather" = lock-false;
+        "browser.newtabpage.activity-stream.newtabWallpapers.enabled" = lock-false;
+        "browser.newtabpage.activity-stream.newtabWallpapers.v2.enabled" = lock-false;
+        "browser.newtabpage.activity-stream.default.sites" = {
+          Value = "";
+          Status = "locked";
+        };
         # safebrowsing
         "browser.safebrowsing.malware.enabled" = lock-true;
         "browser.safebrowsing.phishing.enabled" = lock-true;
@@ -256,16 +300,6 @@
         };
         "browser.tabs.warnOnClose" = lock-true;
         "browser.tabs.firefox-view" = lock-false;
-              "sidebar.revamp" = {
-        Comment = "Preference not allowed for stability reasons.";
-        Status = "default";
-        Type = "boolean";
-        Value = true;
-      };
-        "sidebar.main.tools" = {
-          Value = "";
-          Status = "locked";
-        };
         "browser.tabs.closeTabByDblclick" = lock-true;
         "ui.key.menuAccessKeyFocuses" = lock-false;
         # general settings