This is a keyboard shortcut or tip that is not new as it has worked on Macs for a long time and is obviously also available in macOS Safari. The main reason for this keyboard shortcut is really functional and is that if we close a browser tab by mistake or we simply want to recover it because we forgot some detail, we can reload it simply by pressing three keys. This time we can recover the last closed tab in Safari from macOS Sierra and OS X, it is very simple to carry out.
So to recover that closed tab we just have to use the key combination Cmd + Shift + T and the last closed tab would be opened automatically. This is valid for several versions of the Apple operating system, but if we change the Cmd key to Ctrl, we have the same result in Google Chrome and if we are also using Google Chrome on our Mac, we can use the key combination Cmd + Shift + T.
On the other hand, it is important to note that we have to have at least one tab open at this time To open the tab that you closed by chance, if it is the last browser tab, the browser will close and we cannot use this tip.
Surely many of those present already knew this keyboard shortcut, but for all those who did not know it or who have just bought a Mac, it may be interesting to know this keyboard shortcut to recover a closed tab in macOS Sierra and the rest of OS X above with the Safari or Google Chrome browser.