You can also restore all tiles you previously removed by clicking on the Restore all option next to Undo. You can always undo the action if you have second thoughts. You’ll receive a message saying that your thumbnail was removed.Click on the X sign that shows on the tile’s top right-hand corner.Hover over the page thumbnail you wish to remove.What you can do is remove certain thumbnails you don’t find useful: When it comes to customizing your default New Tab Page without extensions, there’s little you can do about it.