Turning this option on will allow you to use various developer tools in browser context (via Tools > Web Developer > Browser Toolbox) and debug add-ons from the Add-ons Manager
Keto gin ayera man biweko i tiyo ki gitic pa layub mapatpat i kabedo ma orumu layeny (ki i Gitic > Layub Kakube > Bok gitic me Layeny) kadong nongo bal i med-ikome ma i Lalor Med-ikome