Update app.py

app.py

@@ -722,6 +722,12 @@ def build_app():
             # Initialize state
             state_bookmarks = gr.State([])
 
+            # Define 'bookmark_selector' BEFORE the tabs to ensure it's available when referenced
+            bookmark_selector = gr.CheckboxGroup(
+                label="✅ Select Bookmarks",
+                choices=[]
+            )
+
             # General Overview
             gr.Markdown("""
 # 📚 SmartMarks - AI Browser Bookmarks Manager
@@ -834,10 +840,7 @@ Navigate through the tabs to explore each feature in detail.
 """)
 
                 manage_output = gr.Textbox(label="🔄 Status", interactive=False)
-                bookmark_selector = gr.CheckboxGroup(
-                    label="✅ Select Bookmarks",
-                    choices=[]
-                )
+                # 'bookmark_selector' is already defined outside the tab
                 new_category = gr.Dropdown(
                     label="🆕 New Category",
                     choices=CATEGORIES,