diff --git a/testing/web-platform/meta/MANIFEST.json b/testing/web-platform/meta/MANIFEST.json
index 23aea8e43af7..376a6cfcdbb5 100644
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -400682,7 +400682,7 @@
    "support"
   ],
   "FileAPI/historical.https.html": [
-   "93903b4f58bc215ea2a67fc6d281593ec5ce79e9",
+   "e1cf63d05a0e401cc38a11d2b42efb9e8d315610",
    "testharness"
   ],
   "FileAPI/idlharness-manual.html": [
@@ -400922,7 +400922,7 @@
    "testharness"
   ],
   "IndexedDB/historical.html": [
-   "0c4584e1b021a286445a2a9d3388ff011a1b933e",
+   "2a5eaca2bbe1d0c9495ab7c48560d611f60a007c",
    "testharness"
   ],
   "IndexedDB/idb-binary-key-detached.htm": [
@@ -552870,7 +552870,7 @@
    "testharness"
   ],
   "dom/historical.html": [
-   "ccf3d9d2d8eb3e7353ecedd8a4d8ba232f9374ec",
+   "291d078c4424d0491aeab7524d350eab7304f989",
    "testharness"
   ],
   "dom/interface-objects.html": [
diff --git a/testing/web-platform/tests/FileAPI/historical.https.html b/testing/web-platform/tests/FileAPI/historical.https.html
index 9d78b5690fbb..877aed06466a 100644
--- a/testing/web-platform/tests/FileAPI/historical.https.html
+++ b/testing/web-platform/tests/FileAPI/historical.https.html
@@ -10,17 +10,20 @@
  <body>
   <div id="log"></div>
   <script>
-    test(function() {
-        assert_false('toNativeLineEndings' in window);
-    }, '"toNativeLineEndings" should not be supported');
+    var removedFromWindow = [
+        'toNativeLineEndings',
+        'FileError',
+        'FileException',
+        'FileHandle',
+        'FileRequest',
+        'MutableFile',
+    ];
 
-    test(function() {
-        assert_false('FileError' in window);
-    }, '"FileError" should not be supported');
-
-    test(function() {
-        assert_false('FileException' in window);
-    }, '"FileException" should not be supported');
+    removedFromWindow.forEach(function(name) {
+        test(function() {
+            assert_false(name in window);
+        }, '"' + name + '" should not be supported');
+    });
 
     test(function() {
         var b = new Blob();
diff --git a/testing/web-platform/tests/IndexedDB/historical.html b/testing/web-platform/tests/IndexedDB/historical.html
index 73d78c816763..8e7097eb46fd 100644
--- a/testing/web-platform/tests/IndexedDB/historical.html
+++ b/testing/web-platform/tests/IndexedDB/historical.html
@@ -63,4 +63,18 @@ test(function() {
   // Replaced circa May 2012 by a DOMString (later, IDBTransactionMode enum).
   assert_false('VERSION_CHANGE' in IDBTransaction);
 }, '"VERSION_CHANGE" should not be supported on IDBTransaction.');
+
+// Gecko-proprietary interfaces.
+var removedFromWindow = [
+  'IDBFileHandle',
+  'IDBFileRequest',
+  'IDBMutableFile',
+];
+
+removedFromWindow.forEach(function(name) {
+  test(function() {
+    assert_false(name in window);
+  }, '"' + name + '" should not be supported');
+});
+
 </script>
diff --git a/testing/web-platform/tests/dom/historical.html b/testing/web-platform/tests/dom/historical.html
index 388366c084c0..b45bebfb662d 100644
--- a/testing/web-platform/tests/dom/historical.html
+++ b/testing/web-platform/tests/dom/historical.html
@@ -12,12 +12,14 @@ function isInterfaceNuked(name) {
 }
 var nukedInterfaces = [
   "DOMConfiguration",
+  "DOMCursor",
   "DOMError",
   "DOMErrorHandler",
   "DOMImplementationList",
   "DOMImplementationSource",
   "DOMLocator",
   "DOMObject",
+  "DOMRequest",
   "DOMSettableTokenList",
   "DOMUserData",
   "Entity",
