Sorry, is this a problem on the new tab page (the page that opens when you click the "+" button on the tab bar or press Ctrl+t) or a problem with the button on the bookmarks toolbar that shows the most visited pages? ''If it's the new tab page:'' Is something else displaying on the page instead? Or was all the history deleted -- you can check the history menu? ''If it's the button:'' Please try the steps in this article: [[Restore the default Smart Bookmarks Folders]]. '''''Or''''' if the whole bookmarks toolbar is missing, you can use one of these methods to show the toolbar list and select it there: * right-click a blank spot on the tab bar (or the "+" button) * tap the Alt key to activate the classic menu bar > View > Toolbars * in Customize mode > Show/Hide Toolbars (see: [[Customize Firefox controls, buttons and toolbars]]) To turn on the Bookmarks Toolbar, Menu Bar, or other bars, click it on the list.