<strong>Most importantly</strong>, the add-on must have wide consumer appeal to Firefox's users and be outstanding in nearly every way: user experience, performance, security, and usefulness or entertainment value. Featured complete themes must also be visually appealing.
<strong>Yang terpenting</strong>, pengaya harus memiliki daya tarik luas bagi pengguna Firefox dan unggul di hampir semua hal: pengalaman pengguna, performa, keamanan dan nilai ketergunaan atau hiburan. Tema lengkap unggulan juga harus menarik secara visual.