oTab is a modern bookmark that gonna help you to organize your browser tabs by boards and columns. When you want to add new tab you can just dragging and dropping it into your columns or save your session in just one click.And also you can use labels to organize your columns. FEATURES ★ Add your favorite website by dragging it into a column ★ Save your session in just one click ★ Auto backup your data by logging into your account ★ Organize your columns using label