@-moz-document url(about:home),
url(about:newtab) {
	.personalize-button {
		display: none !important;
	}
}
@-moz-document url(about:home), url("about:newtab")
{
.activity-stream
	{
	background-image: url('img.png') !important;
	background-size: 20% !important;
	background-repeat: no-repeat !important;
	background-position: right bottom !important;
	background-attachment: fixed !important;
	}
}