diff --git a/application/palemoon/components/places/content/treeView.js b/application/palemoon/components/places/content/treeView.js
index c1879aacf1..aba7314700 100644
--- a/application/palemoon/components/places/content/treeView.js
+++ b/application/palemoon/components/places/content/treeView.js
@@ -144,7 +144,12 @@ PlacesTreeView.prototype = {
     // A node is removed form the view either if it has no parent or if its
     // root-ancestor is not the root node (in which case that's the node
     // for which nodeRemoved was called).
-    let ancestors = [x for (x of PlacesUtils.nodeAncestors(aNode))];
+    // Tycho: let ancestors = [x for (x of PlacesUtils.nodeAncestors(aNode))];
+    let ancestors = [];
+    for (let x of PlacesUtils.nodeAncestors(aNode)) {
+      ancestors.push(x);
+    }
+
     if (ancestors.length == 0 ||
         ancestors[ancestors.length - 1] != this._rootNode) {
       throw new Error("Removed node passed to _getRowForNode");