--- a/mobile/android/base/java/org/mozilla/gecko/toolbar/ToolbarDisplayLayout.java
+++ b/mobile/android/base/java/org/mozilla/gecko/toolbar/ToolbarDisplayLayout.java
@@ -300,16 +300,21 @@ public class ToolbarDisplayLayout extend
 
         final SpannableString spannable = new SpannableString(title);
         spannable.setSpan(mCertificateOwnerColorSpan, 0, title.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 
         setTitle(spannable);
     }
 
     private void updateAndColorTitleFromFullURL(String url, String baseDomain, boolean isPrivate) {
+        if (TextUtils.isEmpty(baseDomain)) {
+            setTitle(url);
+            return;
+        }
+
         int index = url.indexOf(baseDomain);
         if (index == -1) {
             setTitle(url);
             return;
         }
 
         final SpannableStringBuilder builder = new SpannableStringBuilder(url);