Active Tab History
Go forward and back active tab history with Alt+,(comma) and Alt+.(period)
What is Active Tab History?
Active Tab History is a Firefox add-on that allows users to navigate forward and backward in the history of their active tab using Alt+,(comma) and Alt+.(period) keyboard shortcuts. The keyboard shortcuts can be customized on Firefox 66 and later.
Change Keyboard Shortcuts
You can change on the manage extension shortcuts page on Firefox 66 and later.
Active Tab History is safe to use. It does not request any sensitive permissions.
Active Tab History has earned a fairly good reputation and likely can be trusted.