diff --git a/modules/nixos/multimedia/web/firefox/preferences.nix b/modules/nixos/multimedia/web/firefox/preferences.nix
index 6cf1428..df66858 100644
--- a/modules/nixos/multimedia/web/firefox/preferences.nix
+++ b/modules/nixos/multimedia/web/firefox/preferences.nix
@@ -5,7 +5,7 @@ let
     else if (builtins.isInt value) || (builtins.isNull value) then
       builtins.toString value
     else if builtins.isString value then
-      value
+      ''"${value}"''
     else
       builtins.throw
         "Pref expected one of (Bool, String, Int, Null) got instead ${builtins.typeOf value}";
@@ -14,7 +14,7 @@ let
     "\n"
     (builtins.attrValues
       (builtins.mapAttrs
-        (n: v: ''user_pref("${n}", "${(prefToString v)}");'') prefs));
+        (n: v: ''user_pref("${n}", ${prefToString v});'') prefs));
 in 
   mkPrefs {
     "browser.urlbar.suggest.topsites" = false;
diff --git a/overlays/nixpak/firefox.nix b/overlays/nixpak/firefox.nix
index de10fc0..d6b7939 100644
--- a/overlays/nixpak/firefox.nix
+++ b/overlays/nixpak/firefox.nix
@@ -15,7 +15,8 @@
       prefsFile = "${cfgPath}/modules/nixos/multimedia/web/firefox/preferences.nix";
     in prev.firefox-esr.override {
       extraPolicies = import policiesFile;
-      extraPrefs = builtins.trace (import prefsFile) (import prefsFile); 
+        # extraPrefs = builtins.trace (import prefsFile) (import prefsFile); 
+      extraPrefs = "";
     };
 
     sandboxed-firefox-esr = prev.mkNixPak {