To reopen the last closed tab in Firefox, right-click on the tab bar and select “Undo Close Tab” from the popup menu. To open the webpage from today, yesterday, or from a specific date before that, simply click the link for the page you want.
Your browsing history displays on a new tab, grouped into time periods. Under “Recently closed”, on the submenu, selecting the option that says “X tabs” (for example, “2 tabs”) will open that many recently closed tabs in a new browser window.
