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 }.
Runngere heftinirde maa ena waɗi <a data-l10n-name="user-js-link">fiilde user.js</a>, waɗnde keeroraaɗi ɗi { -brand-short-name } sosaani.