Firefox Fan Club + More Browsers

/* Firefox 9 のRSSフィードアイコンをロケーションバーの中に移動する */
/* Remove button shape and place in the location bar */
#urlbar-container + #feed-button,
#urlbar-container + #reload-button + #stop-button + #feed-button {
-moz-appearance: none !important;
border: 0 !important;
background: transparent !important;
box-shadow: white -10px 0 7px -2px !important;
padding: 0 0 0 0px !important;
margin: 4px 47px 4px -63px !important;
position: fixed !important;
z-index: 1 !important;
}
#urlbar-container + #reload-button + #stop-button + #feed-button {
margin: 4px 67px 4px -83px !important;
}

/* Hover effect */
#urlbar-container + #feed-button:not(:hover) > image,
#urlbar-container + #reload-button + #stop-button + #feed-button:not(:hover) > image {
opacity: 0.8;
}
#urlbar-container + #feed-button:not([disabled="true"]):not(:active):hover > image,
#urlbar-container + #reload-button + #stop-button + #feed-button:not([disabled="true"]):not(:active):hover > image {
-moz-transition: opacity .3s ease-in;
}

/* Hide when no feeds */
#urlbar-container + #feed-button[disabled="true"],
#urlbar-container + #reload-button + #stop-button + #feed-button[disabled="true"] {
display: none !important;
}

/* Hide when showing link preview */
#urlbar {
position: relative !important;
z-index: 0 !important;
}
#urlbar[overlinkstate]:not([overlinkstate="fade-out"]) {
z-index: 2 !important;
}

/* Image of the feed-button is changed */
#urlbar-container + #feed-button > .toolbarbutton-icon,
#urlbar-container + #reload-button + #stop-button + #feed-button > .toolbarbutton-icon {
list-style-image: url("chrome://browser/skin/feeds/feedIcon16.png") !important;
-moz-image-region: auto !important;
}