This keyboard shortcut is same as the one used in Chrome. You can also press Ctrl + Shift + T for Windows (or Command + Shift + T for Mac) to open the most recently closed tab. You can restore all tabs or restore specific tabs from here. In order to reopen tabs in Firefox, just click on the Firefox button and go to Recently Closed Tabs from the drop-down menu in the history section. Let’s talk about opening the closed tab in Mozilla Firefox. This keyboard shortcut is almost similar to the one used in Windows, except for the fact that you just have to replace the Control key with the command key. Just press the above three keys whenever you need to quickly open a closed tab on Mac.