Save password and username issue in firefox at login time[autofilled]

Hi while login i used remember password checkbox of firefox. After login the remembered email and password is autofilled in the text boxes of names with names given as textfield as value=mobileNumber and value=pass.

Here in above textField mobileNumber is stored with emailId and pass is stored with password, which is entered at the time of login.

      //mobile text field
      <input id="ember1245" class="ember-view ember-text-field mobile"   type="text">

    //password textfield
    <input id="ember1247" class="ember-view ember-text-field placeholder" placeholder="New Password" type="password">

I am using ember and Handlebar templates

This is happening only in the FireFox But all other Browsers works fine