diff --git a/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx b/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
index 4bd1095b9..bdc7adf6b 100644
--- a/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
+++ b/apps/spreadsheeteditor/mobile/src/controller/Statusbar.jsx
@@ -19,6 +19,9 @@ const StatusbarController = inject('sheets', 'storeFocusObjects', 'users')(obser
                 sheets.setWorksheetLocked(index, locked);
                 storeFocusObjects.setIsLocked(api.asc_getCellInfo());
             });
+            api.asc_registerCallback('asc_onChangeProtectWorkbook', () => {
+                sheets.setProtectedWorkbook(api.asc_isProtectedWorkbook());
+            });
             api.asc_registerCallback('asc_onSheetsChanged', onApiSheetsChanged);
             api.asc_registerCallback('asc_onActiveSheetChanged', onApiActiveSheetChanged);
             api.asc_registerCallback('asc_onHidePopMenu', onApiHideTabContextMenu);
diff --git a/apps/spreadsheeteditor/mobile/src/store/sheets.js b/apps/spreadsheeteditor/mobile/src/store/sheets.js
index 54e04a34b..3a9f98ac9 100644
--- a/apps/spreadsheeteditor/mobile/src/store/sheets.js
+++ b/apps/spreadsheeteditor/mobile/src/store/sheets.js
@@ -33,7 +33,10 @@ export class storeWorksheets {
             setWorkbookLocked: action,
 
             isWorksheetLocked: observable,
-            setWorksheetLocked: action
+            setWorksheetLocked: action,
+
+            isProtectedWorkbook: observable,
+            setProtectedWorkbook: action
         });
         this.sheets = [];
     }
@@ -89,4 +92,9 @@ export class storeWorksheets {
             model.locked = locked;
         this.isWorkbookLocked = locked;
     }
+
+    isProtectedWorkbook = false;
+    setProtectedWorkbook(value) {
+        this.isProtectedWorkbook = value;
+    }
 }
diff --git a/apps/spreadsheeteditor/mobile/src/view/Statusbar.jsx b/apps/spreadsheeteditor/mobile/src/view/Statusbar.jsx
index 6ae773384..f31277e63 100644
--- a/apps/spreadsheeteditor/mobile/src/view/Statusbar.jsx
+++ b/apps/spreadsheeteditor/mobile/src/view/Statusbar.jsx
@@ -16,15 +16,16 @@ const StatusbarView = inject('storeAppOptions', 'sheets', 'users')(observer(prop
     const {sheets, storeAppOptions, users} = props;
     const allSheets = sheets.sheets;
     const hiddenSheets = sheets.hiddenWorksheets();
-    // const isWorkbookLocked = sheets.isWorkbookLocked;
+    const isWorkbookLocked = sheets.isWorkbookLocked;
+    const isProtectedWorkbook = sheets.isProtectedWorkbook;
     const isEdit = storeAppOptions.isEdit;
     const isDisconnected = users.isDisconnected;
 
     return (
         <Fragment>
             <View id="idx-statusbar" className="statusbar" style={viewStyle}>
-                <div id="idx-box-add-tab" className={`${isDisconnected ? 'disabled' : ''}`}>
-                    <Link href={false} id="idx-btn-addtab" className={`tab${isDisconnected ? ' disabled' : ''}`} onClick={props.onAddTabClicked}>
+                <div id="idx-box-add-tab" className={`${isDisconnected || isWorkbookLocked || isProtectedWorkbook ? 'disabled' : ''}`}>
+                    <Link href={false} id="idx-btn-addtab" className={`tab${isDisconnected || isWorkbookLocked || isProtectedWorkbook  ? ' disabled' : ''}`} onClick={props.onAddTabClicked}>
                         <Icon className="icon icon-plus" />
                     </Link>
                 </div>