diff --git a/plugins/bookmarks-by-zaso.user.js b/plugins/bookmarks-by-zaso.user.js
index 5eae4362..37745060 100644
--- a/plugins/bookmarks-by-zaso.user.js
+++ b/plugins/bookmarks-by-zaso.user.js
@@ -30,7 +30,7 @@
   // use own namespace for plugin
   window.plugin.bookmarks = function() {};
 
-  window.plugin.bookmarks.SYNC_DELAY = 5;
+  window.plugin.bookmarks.SYNC_DELAY = 5000;
 
   window.plugin.bookmarks.KEY_OTHER_BKMRK = 'idOthers';
   window.plugin.bookmarks.KEY_STORAGE = 'plugin-bookmarks';
diff --git a/plugins/keys.user.js b/plugins/keys.user.js
index 3b73d1b5..eed0ffc9 100644
--- a/plugins/keys.user.js
+++ b/plugins/keys.user.js
@@ -22,7 +22,7 @@
 window.plugin.keys = function() {};
 
 // delay in ms
-window.plugin.keys.SYNC_DELAY = 10000;
+window.plugin.keys.SYNC_DELAY = 5000;
 
 window.plugin.keys.LOCAL_STORAGE_KEY = 'plugin-keys-data';
 
diff --git a/plugins/sync.user.js b/plugins/sync.user.js
index c68e3e81..388ad864 100644
--- a/plugins/sync.user.js
+++ b/plugins/sync.user.js
@@ -440,7 +440,7 @@ window.plugin.sync.FileSearcher.prototype.initFile = function(assignIdCallback,
   };
 
   searchCallback = function(resp) {
-    if(resp.items) {
+    if(resp.items && resp.items[0]) {
       handleFileId(resp.items[0].id);// file found
     } else if(!resp.error) {
       _this.createFileOrFolder(createCallback); // file not found, create file
diff --git a/plugins/uniques.user.js b/plugins/uniques.user.js
index 3dac03f4..bd3f1dfd 100644
--- a/plugins/uniques.user.js
+++ b/plugins/uniques.user.js
@@ -21,7 +21,7 @@
 window.plugin.uniques = function() {};
 
 //delay in ms
-window.plugin.uniques.SYNC_DELAY = 10000;
+window.plugin.uniques.SYNC_DELAY = 5000;
 
 // maps the JS property names to localStorage keys
 window.plugin.uniques.FIELDS = {