Tweaking Firefox via userChrome.css

My Changes :

/*
* Edit this file and copy it as userChrome.css into your
* profile-directory/chrome/
*/

/*
* Do not remove the @namespace line -- it's required for correct functioning
*/
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

/* Make the Search box flex wider */
#search-container, #searchbar {
width: 280px !important;
}

/* Unread tabs */
#content tab:not([selected]) {
font-style: italic !important;
color: #008001 !important;
}

/* Normalise the title of read, but unselected tabs */
#content tab[selected="false"] {
font-style: normal !important;
color: Black !important;
}

/* Active Tab... */
tab[selected="true"] {
background-color: rgb(222,218,210) !important;
color: black !important;
font-weight: bold !important;
background-image: url(gradient_sunorange_top.gif) !important;
}

/* Remove the 'Go' button */
#go-button {
display: none !important; }

/* Show tab favicon only on selected tab */
tab:not([selected="true"]) .tab-icon {
display: none !important; }

/*
 * Adjust font and size of Bookmarks Toolbar items : http://userstyles.org/style/show/901
 */
#bookmarks-ptf .toolbarbutton-text {
 /* font-size: 10px !important;*/
 font-size: 8pt !important;
}


/* Make inactive tabs hardly visible 
#content tab:not([selected="true"]) {
  -moz-opacity: 0.5 !important; }
*/


/* Change color of tabs NOT currently selected... regardless of read or not
tab:not([selected="true"]) {
  font-style: italic !important;
  color: Fuchsia !important;
}
*/

/* Slightly rounded address and search bar corners 
#urlbar {
-moz-appearance: none !important;
-moz-border-radius: 3px !important;
  padding-right: 1px !important; }

*/