I wrote my email in the Extension and clicked Log in

I'm unable to remove the settings and changes of the Extension I want to reset the Extension Because it does not work well because of settings ITS VPN its show :"with login" But it's been stuck like this for days I tried deleting the Extension and reinstalling But it's still stuck like that what did I do: I wrote my email in the Extension and clicked Log in And since then it's stuck like that I do not want to remove all Extension or reset all firefox I just want to fix this specific Extension I would love to know where data of each Extension is stored That way I can delete the specific data of this Extension I am an advanced user I will be able to understand you and your complex solutions And I'm willing to do anything to fix it (except reset firefox (