This should be the expected behavior when pressing the button on a new Safari tab. Otherwise, should redirect to the URL your current open tab is displaying.
Then something in the UX is broken. From your store images, I understood that clicking on that tab menu item, it would display last archive date and ask to rearchive, no?
There is a reason why most Safari extensions apps do not just show an icon and a label, but actually explain how to use their embedded extensions.
The extension is open source, I'm open to new ideas on how to improve this further. The current Edge/Firefox extensions just error out, and this was not acceptable for this version of the extension per the AppStore rules.
There is a reason why most Safari extensions apps do not just show an icon and a label, but actually explain how to use their embedded extensions.