@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("mail.google.com") {
/*remove the stars themselves*/
td .zG {
display:none;
}
/*remove selectable items*/
span[selector="starred"],span[selector="unstarred"] {
display:none !important;
}
/*remove menu item*/
div[style="-moz-user-select: none;"]>div.nH>div:first-child+div {
display:none !important;
}
}