diff --git a/apps/api/documents/api.js b/apps/api/documents/api.js
index 7a2fba2d3..9efa146cd 100644
--- a/apps/api/documents/api.js
+++ b/apps/api/documents/api.js
@@ -116,7 +116,6 @@
                     rightMenu: true,
                     hideRightMenu: false, // hide or show right panel on first loading
                     toolbar: true,
-                    header: true,
                     statusBar: true,
                     autosave: true,
                     forcesave: false,
diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 991674ad5..8adac22ab 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -70,7 +70,6 @@ define([
             toolbar: '#viewport #toolbar',
             leftMenu: '#viewport #left-menu, #viewport #id-toolbar-full-placeholder-btn-settings, #viewport #id-toolbar-short-placeholder-btn-settings',
             rightMenu: '#viewport #right-menu',
-            header: '#viewport #header',
             statusBar: '#statusbar'
         };
 
@@ -1182,21 +1181,12 @@ define([
             applyModeCommonElements: function() {
                 window.editor_elements_prepared = true;
 
-                // var value = Common.localStorage.getItem("de-hidden-title");
-                //     value = this.appOptions.isEdit && (value!==null && parseInt(value) == 1);
-
                 var app             = this.getApplication(),
                     viewport        = app.getController('Viewport').getView('Viewport'),
-                    // headerView      = app.getController('Viewport').getView('Common.Views.Header'),
                     statusbarView   = app.getController('Statusbar').getView('Statusbar'),
                     documentHolder  = app.getController('DocumentHolder').getView(),
                     toolbarController   = app.getController('Toolbar');
 
-                // if (headerView) {
-                    // headerView.setHeaderCaption(this.appOptions.isEdit ? 'Document Editor' : 'Document Viewer');
-                    // headerView.setVisible(!this.appOptions.nativeApp && !value && !this.appOptions.isDesktopApp);
-                // }
-
                 viewport && viewport.setMode(this.appOptions);
                 statusbarView && statusbarView.setMode(this.appOptions);
                 toolbarController.setMode(this.appOptions);
diff --git a/apps/documenteditor/main/app/controller/Toolbar.js b/apps/documenteditor/main/app/controller/Toolbar.js
index b6b99f48f..0ed9d8fb8 100644
--- a/apps/documenteditor/main/app/controller/Toolbar.js
+++ b/apps/documenteditor/main/app/controller/Toolbar.js
@@ -2032,16 +2032,6 @@ define([
             }
         },
 
-        // onHideTitleBar: function(item, checked) {
-        //     var headerView  = this.getApplication().getController('Viewport').getView('Common.Views.Header');
-        //     headerView  && headerView.setVisible(!checked);
-        //
-        //     Common.localStorage.setItem('de-hidden-title', checked ? 1 : 0);
-        //
-        //     Common.NotificationCenter.trigger('layout:changed', 'header');
-        //     Common.NotificationCenter.trigger('edit:complete', this.toolbar);
-        // },
-
         _clearBullets: function() {
             this.toolbar.btnMarkers.toggle(false, true);
             this.toolbar.btnNumbers.toggle(false, true);
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index 9482e4270..431d867cd 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -70,7 +70,6 @@ define([
             toolbar: '#viewport #toolbar',
             leftMenu: '#viewport #left-menu, #viewport #id-toolbar-full-placeholder-btn-settings, #viewport #id-toolbar-short-placeholder-btn-settings',
             rightMenu: '#viewport #right-menu',
-            header: '#viewport #header',
             statusBar: '#statusbar'
         };
 
@@ -923,18 +922,12 @@ define([
             applyModeCommonElements: function() {
                 window.editor_elements_prepared = true;
 
-                // var value = Common.localStorage.getItem("pe-hidden-title");
-                // value = this.appOptions.isEdit && (value!==null && parseInt(value) == 1);
-
                 var app             = this.getApplication(),
                     viewport        = app.getController('Viewport').getView('Viewport'),
                     statusbarView   = app.getController('Statusbar').getView('Statusbar'),
                     documentHolder  = app.getController('DocumentHolder').getView('DocumentHolder'),
                     toolbarController = app.getController('Toolbar');
 
-                // appHeader.setHeaderCaption(this.appOptions.isEdit ? 'Presentation Editor' : 'Presentation Viewer');
-                // appHeader.setVisible(!this.appOptions.nativeApp && !value && !this.appOptions.isDesktopApp);
-
                 viewport && viewport.setMode(this.appOptions, true);
                 statusbarView && statusbarView.setMode(this.appOptions);
                 toolbarController.setMode(this.appOptions);
diff --git a/apps/presentationeditor/main/app/controller/Toolbar.js b/apps/presentationeditor/main/app/controller/Toolbar.js
index 492f45054..4115e6006 100644
--- a/apps/presentationeditor/main/app/controller/Toolbar.js
+++ b/apps/presentationeditor/main/app/controller/Toolbar.js
@@ -1541,16 +1541,6 @@ define([
             Common.component.Analytics.trackEvent('ToolBar', 'Style');
         },
 
-        onHideTitleBar: function(item, checked) {
-            var headerView  = this.getApplication().getController('Viewport').getView('Common.Views.Header');
-            headerView  && headerView.setVisible(!checked);
-
-            Common.localStorage.setItem('pe-hidden-title', checked ? 1 : 0);
-
-            Common.NotificationCenter.trigger('layout:changed', 'header');
-            Common.NotificationCenter.trigger('edit:complete', this.toolbar);
-        },
-
         _clearBullets: function() {
             this.toolbar.btnMarkers.toggle(false, true);
             this.toolbar.btnNumbers.toggle(false, true);
diff --git a/apps/presentationeditor/mobile/app/controller/Main.js b/apps/presentationeditor/mobile/app/controller/Main.js
index fc7e0a79b..af235d9ac 100644
--- a/apps/presentationeditor/mobile/app/controller/Main.js
+++ b/apps/presentationeditor/mobile/app/controller/Main.js
@@ -952,15 +952,6 @@ define([
             },
 
             hidePreloader: function() {
-                // if (!!this.appOptions.customization && !this.appOptions.customization.done) {
-                //     this.appOptions.customization.done = true;
-                //     if (!this.appOptions.isDesktopApp)
-                //         this.appOptions.customization.about = true;
-                //     Common.Utils.applyCustomization(this.appOptions.customization, mapCustomizationElements);
-                //     if (this.appOptions.canBrandingExt)
-                //         Common.Utils.applyCustomization(this.appOptions.customization, mapCustomizationExtElements);
-                // }
-
                 $('#loading-mask').hide().remove();
             },
 
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 5df0732da..f446a8c66 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -74,7 +74,6 @@ define([
             toolbar: '#viewport #toolbar',
             leftMenu: '#viewport #left-menu, #viewport #id-toolbar-full-placeholder-btn-settings, #viewport #id-toolbar-short-placeholder-btn-settings',
             rightMenu: '#viewport #right-menu',
-            header: '#viewport #header',
             statusBar: '#statusbar'
         };
 
@@ -1061,7 +1060,6 @@ define([
 
                     if (!me.appOptions.isEditMailMerge && !me.appOptions.isEditDiagram) {
                         var options = {};
-                        JSON.parse(Common.localStorage.getItem('sse-hidden-title')) && (options.title = true);
                         JSON.parse(Common.localStorage.getItem('sse-hidden-formula')) && (options.formula = true);
                         application.getController('Toolbar').hideElements(options);
                     } else