diff --git a/desktop/software/default.nix b/desktop/software/default.nix
index 98d9415..690b403 100644
--- a/desktop/software/default.nix
+++ b/desktop/software/default.nix
@@ -84,6 +84,9 @@ in
         settings = {
           "identity.fxaccounts.enabled" = true;
           "identity.sync.tokenserver.uri" = "https://firefox-syncserver.roam.hdohmen.de/1.0/sync/1.5";
+          "privacy.resistFingerprinting.letterboxing" = true;
+          "privacy.resistFingerprinting" = true;
+          "signon.rememberSignons" = false;
         };
       };
       programs.thunderbird = {