1 files changed, 44 insertions, 0 deletions
diff --git a/profiles/disableUpdates.nix b/profiles/disableUpdates.nix
new file mode 100644
index 0000000..ed5cccb
--- /dev/null
+++ b/profiles/disableUpdates.nix
@@ -0,0 +1,44 @@
+{ config, lib, ff, ... }: with lib; {
+  options.features.disableUpdates = mkOption {
+    type = types.bool;
+    default = false;
+    description = ''
+      Disable all automatic updates, including:
+        - Firefox itself
+        - Extensions
+        - Search providers
+
+      If some or all of these are externally managed, we may want to prevent automatic
+      updates from undoing our changes.
+
+      If any properties of our deployment have been audited, automatic updates may introduce
+      unaudited components and compromise any guarantees made about the users security or privacy.
+    '';
+  };
+
+  config = lib.mkIf config.features.disableUpdates {
+    policies = {
+      DisableAppUpdate = true;
+      DisableSystemAddonUpdate = true;
+      ExtensionUpdate = false;
+
+      Preferences = ff.flattenAttrs {
+        app.update.auto = false;
+        browser.search.update = false;
+      };
+    };
+
+    preferences = {
+      # try really hard to prevent search engine resets, probably wrong
+      browser.search = {
+        update = false;
+        geoSpecificDefaults = false;
+        "geoSpecificDefaults.url" = "";
+        geoip.url = "";
+        suggest.enabled = false;
+        reset.enabled = false;
+        reset.whitelist = "";
+      };
+    };
+  };
+}