Notes.

src/modules/ctypes/winnt/win32.jsm

@@ -49,6 +49,7 @@ var win32 = new function() {
   this.HGDIOBJ   = this.HANDLE;
   this.HBITMAP   = this.HANDLE;
   this.HFONT     = this.HANDLE;
+  // FIXME: jschar renamed to char16_t (FF35+)
   this.TCHAR     = ctypes.jschar, // Mozilla compiled with UNICODE/_UNICODE macros and wchar_t = jschar
   this.LPSTR     = ctypes.char.ptr;
   this.LPCSTR    = ctypes.char.ptr;

src/modules/linux/FiretrayPopupMenu.jsm

@@ -72,6 +72,7 @@ firetray.PopupMenu = {
     this.menuSeparatorWindows = gtk.gtk_separator_menu_item_new();
     gtk.gtk_menu_shell_prepend(
       this.menuShell, ctypes.cast(this.menuSeparatorWindows, gtk.GtkWidget.ptr));
+    // FIXME: we better use a submenu for this: gtk_menu_new(), gtk_menu_item_set_submenu();
 
     // for AppIndicator, not shown otherwise
     this.prependAppIndicatorItems();