1.Login to your blogger dashboard--> Design- -> Edit HTML
2.Find Code </head> ,Use control F
3.Copy below code and paste it just After </head>
<!--Disable Copy And Paste-->
<script language='JavaScript1.2'>
function disableselect(e){
return false
}
function reEnable(){
return true
}
document.onselectstart=new Function ("return false")
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}
</script>
4.Now Click on Save Template.
Now widget disable copy paste ready to protect your content.