5 files changed, 10 insertions, 6 deletions
diff --git a/xpcom/io/nsIFile.idl b/xpcom/io/nsIFile.idl
index 535a7a88ee..89c2155e94 100644
--- a/xpcom/io/nsIFile.idl
+++ b/xpcom/io/nsIFile.idl
@@ -106,7 +106,7 @@ interface nsIFile : nsISupports
      *       ancestor directories (and return an error instead).
      */
     [must_use] void create(in unsigned long type, in unsigned long permissions,
-                           [optional,default(false)] in bool skipAncestors);
+                           [optional,default(false)] in boolean skipAncestors);
 
     /**
      *  Accessor to the leaf name of the file itself.
diff --git a/xpcom/io/nsILocalFileMac.idl b/xpcom/io/nsILocalFileMac.idl
index 38559517e7..a9de769b86 100644
--- a/xpcom/io/nsILocalFileMac.idl
+++ b/xpcom/io/nsILocalFileMac.idl
@@ -176,7 +176,7 @@ interface nsILocalFileMac : nsIFile
      *
      * @return Whether or not the extended attribute is present.
      */
-    bool hasXAttr(in ACString aAttrName);
+    boolean hasXAttr(in ACString aAttrName);
 
     /**
      * Get the value of the extended attribute.
diff --git a/xpcom/io/nsILocalFileWin.idl b/xpcom/io/nsILocalFileWin.idl
index a3f80d391b..1195e2aa58 100644
--- a/xpcom/io/nsILocalFileWin.idl
+++ b/xpcom/io/nsILocalFileWin.idl
@@ -53,7 +53,7 @@ interface nsILocalFileWin : nsIFile
      * Throws NS_ERROR_FILE_INVALID_PATH for an invalid file.
      * Throws NS_ERROR_FAILURE if the set or get fails.
      */
-    attribute bool readOnly;
+    attribute boolean readOnly;
 
     /**
      * Setting this to true will prepend the prefix "\\?\" to all parsed file
diff --git a/xpcom/io/nsIRandomAccessStream.idl b/xpcom/io/nsIRandomAccessStream.idl
index 20421def17..87bc3626f3 100644
--- a/xpcom/io/nsIRandomAccessStream.idl
+++ b/xpcom/io/nsIRandomAccessStream.idl
@@ -58,5 +58,5 @@ interface nsIRandomAccessStream : nsISeekableStream
 
   [notxpcom, nostdcall] RandomAccessStreamParams serialize(in nsIInterfaceRequestor aCallbacks);
 
-  [notxpcom, nostdcall] bool deserialize(inout RandomAccessStreamParamsRef params);
+  [notxpcom, nostdcall] boolean deserialize(inout RandomAccessStreamParamsRef params);
 };
diff --git a/xpcom/io/nsLocalFileWin.cpp b/xpcom/io/nsLocalFileWin.cpp
index 13fea1d2ca..3d62a69a10 100644
--- a/xpcom/io/nsLocalFileWin.cpp
+++ b/xpcom/io/nsLocalFileWin.cpp
@@ -326,6 +326,8 @@ static nsresult ConvertWinError(DWORD aWinErr) {
       [[fallthrough]];  // to NS_ERROR_FILE_DEVICE_FAILURE
     case ERROR_DEV_NOT_EXIST:
       [[fallthrough]];  // to NS_ERROR_FILE_DEVICE_FAILURE
+    case ERROR_INVALID_FUNCTION:
+      [[fallthrough]];  // to NS_ERROR_FILE_DEVICE_FAILURE
     case ERROR_IO_DEVICE:
       rv = NS_ERROR_FILE_DEVICE_FAILURE;
       break;
@@ -671,10 +673,12 @@ static nsresult OpenDir(const nsString& aName, nsDir** aDir) {
 
   filename.ReplaceChar(L'/', L'\\');
 
-  // FindFirstFileW Will have a last error of ERROR_DIRECTORY if
+  // FindFirstFileExW Will have a last error of ERROR_DIRECTORY if
   // <file_path>\* is passed in.  If <unknown_path>\* is passed in then
   // ERROR_PATH_NOT_FOUND will be the last error.
-  d->handle = ::FindFirstFileW(filename.get(), &(d->data));
+  d->handle = ::FindFirstFileExW(filename.get(), FindExInfoBasic, &(d->data),
+                                 FindExSearchNameMatch, nullptr,
+                                 FIND_FIRST_EX_LARGE_FETCH);
 
   if (d->handle == INVALID_HANDLE_VALUE) {
     delete d;