--- a/browser/components/migration/SafariProfileMigrator.js
+++ b/browser/components/migration/SafariProfileMigrator.js
@@ -174,17 +174,17 @@ Bookmarks.prototype = {
           return null;
         }
         let title;
         if (entry.has("URIDictionary"))
           title = entry.get("URIDictionary").get("title");
         return { url, title };
       }
       return null;
-    }).filter(e => !!e);
+    }, this).filter(e => !!e);
   },
 };
 
 function History(aHistoryFile) {
   this._file = aHistoryFile;
 }
 History.prototype = {
   type: MigrationUtils.resourceTypes.HISTORY,

index 40783c7b150109eed37a7f4a6a007488caa8577e..8046d5e9c984ed9f908d748d813a383b0d3c00ab
GIT binary patch
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--- a/browser/components/migration/tests/unit/test_Safari_bookmarks.js
+++ b/browser/components/migration/tests/unit/test_Safari_bookmarks.js
@@ -10,21 +10,25 @@ add_task(function* () {
   // Wait for the imported bookmarks.  Check that "From Safari"
   // folders are created on the toolbar.
   let source = MigrationUtils.getLocalizedString("sourceNameSafari");
   let label = MigrationUtils.getLocalizedString("importedBookmarksFolder", [source]);
 
   let expectedParents = [ PlacesUtils.toolbarFolderId ];
   let itemCount = 0;
 
+  let gotFolder = false;
   let bmObserver = {
     onItemAdded(aItemId, aParentId, aIndex, aItemType, aURI, aTitle) {
       if (aTitle != label) {
         itemCount++;
       }
+      if (aItemType == PlacesUtils.bookmarks.TYPE_FOLDER && aTitle == "Stuff") {
+        gotFolder = true;
+      }
       if (expectedParents.length > 0 && aTitle == label) {
         let index = expectedParents.indexOf(aParentId);
         Assert.ok(index != -1, "Found expected parent");
         expectedParents.splice(index, 1);
       }
     },
     onBeginUpdateBatch() {},
     onEndUpdateBatch() {},
@@ -35,12 +39,13 @@ add_task(function* () {
   };
   PlacesUtils.bookmarks.addObserver(bmObserver, false);
 
   yield promiseMigration(migrator, MigrationUtils.resourceTypes.BOOKMARKS);
   PlacesUtils.bookmarks.removeObserver(bmObserver);
 
   // Check the bookmarks have been imported to all the expected parents.
   Assert.ok(!expectedParents.length, "No more expected parents");
+  Assert.ok(gotFolder, "Should have seen the folder get imported");
   Assert.equal(itemCount, 13, "Should import all 13 items.");
   // Check that the telemetry matches:
   Assert.equal(MigrationUtils._importQuantities.bookmarks, itemCount, "Telemetry reporting correct.");
 });