''[Locked as a duplicate of https://support.mozilla.org/en-US/questions/1328143. Please follow up there, thanks.]'' '''I am not able to figure out on how to open the respective add-ons User Interface. ''' * Bulleted list itemI have installed some add-ons like 'HTTPS Everywhere' , 'Nord vpn' etc... * Bulleted list itemWhen I visit the add-ons tab in the menu section on the upper right section of Firefox, it does not show on how to run it or open it. * Bulleted list itemI have been searching this on the internet but couldn't find any information... '''Hope the Firefox team will help, Thank you'''