Your profile folder contains a <a data-l10n-name="user-js-link">user.js file</a>, which includes preferences that were not created by { -brand-short-name }.
Inta cartella do profî gh'é un <a data-l10n-name="user-js-link">file user.js</a> con preferense che no en inpostæ da { -brand-short-name }.