diff --git a/prefs/zen/zen.yaml b/prefs/zen/zen.yaml
index 9cb6734be..9c6e9d787 100644
--- a/prefs/zen/zen.yaml
+++ b/prefs/zen/zen.yaml
@@ -20,12 +20,6 @@
 - name: zen.tabs.close-window-with-empty
   value: true
 
-- name: zen.tabs.use-legacy-drag-and-drop
-  value: false
-
-- name: zen.tabs.folder-dragover-threshold-percent
-  value: 20 # Percentage of folder height to trigger dragover
-
 - name: zen.ctrlTab.show-pending-tabs
   value: false