You can toggle the setting to do it even if you close your browser the normal way: https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tabs-last-time#w_res

You can toggle the setting to do it even if you close your browser the normal way: https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tabs-last-time#w_restore-the-previous-session-every-time-you-open-firefox https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tab...