diff --git a/src/manifest.json b/src/manifest.json
index 6a5e64a..e0178d6 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -116,8 +116,10 @@
     {
       "run_at": "document_start",
       "matches": ["file://*/*", "ftp://*/*"],
+      "match_about_blank": true,
       "all_frames": true,
       "js": [
+        "/nscl/common/UA.js",
         "content/ftp.js",
         "lib/DocumentFreezer.js",
         "content/syncFetchPolicy.js"