diff --git a/system/firefox.nix b/system/firefox.nix
index 6df0ee70..fdee3a1f 100644
--- a/system/firefox.nix
+++ b/system/firefox.nix
@@ -188,8 +188,8 @@
       };
       RequestedLocales = ["en-GB"];
       SanitizeOnShutdown = {
-        Cache = true;
-        Cookies = true;
+        Cache = false;
+        Cookies = false;
         Downloads = true;
         FormData = true;
         History = true;