diff --git i/chrome/content/sogo-connector/addressbook/folder-handler.js w/chrome/content/sogo-connector/addressbook/folder-handler.js
index f1dcdfe..ebe6098 100644
--- i/chrome/content/sogo-connector/addressbook/folder-handler.js
+++ w/chrome/content/sogo-connector/addressbook/folder-handler.js
@@ -103,6 +103,8 @@ AddressbookHandler.prototype = {
         directory.setBoolValue("readOnly", readOnly);
       } catch(e) {
         dump(e);
+        console.error(newDirs);
+        console.error(directory);
       }
 
       //if (readOnly) { 
diff --git i/chrome/content/sogo-connector/calendar/calendar-overlay.js w/chrome/content/sogo-connector/calendar/calendar-overlay.js
index e99adb9..f99c599 100644
--- i/chrome/content/sogo-connector/calendar/calendar-overlay.js
+++ w/chrome/content/sogo-connector/calendar/calendar-overlay.js
@@ -57,8 +57,7 @@ registerJs = () => {
     "chrome://sogo-connector/content/general/sync.addressbook.groupdav.js",
     "chrome://sogo-connector/content/messenger/folders-update.js",
     "chrome://sogo-connector/content/global/sogo-config.js",
-    "chrome://global/content/globalOverlay.js",
-    "chrome://global/content/editMenuOverlay.js"], _this);
+    "chrome://global/content/globalOverlay.js"], _this);
 
   jsInclude(["chrome://sogo-connector/content/general/subscription-utils.js"], window);
 }