Index: adblockplussbrowser/src/main/java/org/adblockplus/sbrowser/contentblocker/engine/Subscriptions.java
===================================================================
--- a/adblockplussbrowser/src/main/java/org/adblockplus/sbrowser/contentblocker/engine/Subscriptions.java
+++ b/adblockplussbrowser/src/main/java/org/adblockplus/sbrowser/contentblocker/engine/Subscriptions.java
@@ -26,16 +26,17 @@ import java.nio.charset.StandardCharsets
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 
 import org.adblockplus.sbrowser.contentblocker.engine.Subscription.Type;
+import org.adblockplus.sbrowser.contentblocker.util.SubscriptionUtils;
 
 import android.util.Log;
 
 /**
  * This class holds all listed subscriptions and manages the subscription
  * aggregation cache folder.
  */
 final class Subscriptions
@@ -139,16 +140,21 @@ final class Subscriptions
     else
     {
       filtersFile = new File(this.subscriptionFolder, "url_"
           + new File(sub.getURL().getPath()).getName() + ".sub");
     }
     return filtersFile;
   }
 
+  File getNotificationDataFile()
+  {
+    return new File (this.subscriptionFolder, Notification.NOTIFICATION_DATA_FILE_NAME);
+  }
+
   File getMetaFile(final Subscription sub)
   {
     return new File(getFiltersFile(sub).getAbsolutePath() + ".meta");
   }
 
   void persistSubscription(final Subscription sub) throws IOException
   {
     sub.serializeSubscription(this.getMetaFile(sub), this.getFiltersFile(sub));
@@ -169,17 +175,17 @@ final class Subscriptions
    * @param output
    * @throws IOException
    */
   private void writeFile(final File output) throws IOException
   {
     final HashSet<String> filters = new HashSet<>();
     for (final Subscription s : this.subscriptions.values())
     {
-      if (s.isEnabled())
+      if (s.isEnabled() && !SubscriptionUtils.isNotificationSubscription(s.getId()))
       {
         Log.d(TAG, "Adding filters for '" + s.getId() + "'");
         s.deserializeFilters(this.getFiltersFile(s));
         s.copyFilters(filters);
         s.clearFilters();
       }
       if ((!s.isMetaDataValid() || !s.isFiltersValid()) && s.getURL() != null)
       {