Final answer:
To restore a closed tab, use the keyboard shortcut Ctrl + Shift + T on Windows or Command + Shift + T on Mac, or right-click on the tab bar and select 'Reopen closed tab' from the context menu.
Step-by-step explanation:
To restore a closed tab in a web browser, you can use a keyboard shortcut. In most web browsers, the shortcut is to press Ctrl + Shift + T on Windows or Command + Shift + T on Mac. This will reopen the most recently closed tab. You can also right-click on the tab bar and select 'Reopen closed tab' from the context menu. The shortcut to restore a closed tab can vary depending on the web browser you are using. However, a common keyboard shortcut for this action is Ctrl + Shift + T on Windows or Cmd + Shift + T on macOS. This command will reopen the last tab that you closed. If you press this shortcut repeatedly, you can restore tabs in the order they were closed, up to a certain limit which is browser-specific. This is a useful feature when you accidentally close a tab or realize you need information from a tab you closed.