I don't se the use of this extension. When you incognito an open tab, then you have already opened it in an normal tab before and created data in the history! Theres is no use to open in in incognito anymore. It would make much more sense to always open specific websites in incognito mode right away, before it was opened in a normal tab.

Can you add the option to make the tab private in the same window rather opening new one if possible in webextension like in legacy ....