why Html form mail gives the coordinates of the image button in firefox -

I have an html mail form and I was just wondering why I received the coordinates of the submit image button in my body The message in Firefox is a way to remove it.

Thanks

  & lt; Form method = "post" action = "mailto: miles@faithinstyle.co.uk topic = password request enctype =" text / plain ">     
    
 
  
 
 IMG ID =" email_buttons "src =" image / button / page here ">>     Html>