@namespace url(http://www.w3.org/1999/xhtml);
 * {
color: #333 !important;
font-family: "Trebuchet MS", "Segoe UI", "Arial", "Serif" !important;
}
 a {
outline:none !important;
}
 a, a:link, a:visited {
color: #1e529d !important;
text-decoration: none !important;
}
 a:hover {
color: #111 !important;
}
 a:active {
color: #f4a460 !important;
text-decoration: none !important;
}
 .cluster {
border-bottom: 1px dotted #708090 !important; /*Separates each posts*/
padding-bottom: 1em !important;
}
 .friend {
background-color: #ffffe0 !important; /*Highlight your friends comments*/
color: #111 !important;
}
 .info, .likes, .comment, #footer, .pager, .bottom, .hidetoggle, #sidebar .box .box-body {
font-size: 12px !important;
}
 .lbody {
font-style: italic !important;
}
 .likes {
background-color: #FFEFE8 !important;
}
 .main ul li a, .section ul li a {
font-size: 11px !important;
}
 .owner {
background-color: #e1f0ff !important; /*Highlight your own comments*/
color: #111 !important;
}
 .searchbold {
background-color: #CCFFE6 !important;
}
 .sharebox, .entry, .pager.top {
border-bottom: 1px dotted #bbb !important;
margin-bottom: 25px !important;
padding-bottom: 25px !important;
}
 .subscribebar, .subscribebar a:link, .subscribebar a:visited, .control, .control a:link, .control a:visited {
color: #fff !important;
}
 .updated {
color: #ccc !important;
font-size: 11px !important;
padding: 1px 0 !important;
}
 #body .box-body {
background-color: #fff !important;
}
 #footer a, #footer a:visited, .feed .entry .info a, .feed .entry .info a:visited, .feed .entry .likes a, .feed .entry .likes a:visited, .feed .entry .comment a, .feed .entry .comment a:visited, .feed .entry .expandcomment a, .feed .entry .expandcomment a:visited, .feed .entry.deleted a, .feed .entry.deleted a:visited, a.fl, a.fl:visited, .usersubgrid .lists a, .usersubgrid .lists a:visited {
color: #333333 !important;
}
 #header {
padding-bottom: 20px !important;
}
 .box .box-bar .box-bar-text, .box .box-bar .box-bar-text a {
color:white !important;
}
 .box-bar-text .title {
color:#fff !important;
}
 #container {
max-width:1200px !important;
}

http://friendfeed.com

Use: https://chrome.google.com/extensions/detail/pabfempgigicdjjlccdgnbmeggkbjdhd

Restart Chrome.

Paste this CSS.

Save.

DONE! ;)

Cleaner FriendFeed (For Chrome 4.xx)

CSS