Last Tab by Mehedi Hasan

Allows you to switch to the last or most recent tab, Press Alt + Z You can also change the keyboard shortcut following this link <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/640dbd2eccfc928511d436ec2d62b3f0bcfdce054f1517993eb531455e6f0e43/https%3A//support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox" rel="nofollow">https://support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox</a>