diff --git a/toolkit/components/places/BookmarkHTMLUtils.jsm b/toolkit/components/places/BookmarkHTMLUtils.jsm
index f8fc0ba519..c10ef85d60 100644
--- a/toolkit/components/places/BookmarkHTMLUtils.jsm
+++ b/toolkit/components/places/BookmarkHTMLUtils.jsm
@@ -1047,7 +1047,12 @@ BookmarkExporter.prototype = {
   },
 
   _writeLine: function (aText) {
-    this._write(aText + "\n");
+    if (Services.sysinfo.getProperty("name") == "Windows_NT") {
+      // Write CRLF line endings on Windows
+      this._write(aText + "\r\n");
+    } else {
+      this._write(aText + "\n");
+    }
   },
 
   _writeHeader: function () {