@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

/* this style allows transparent toolbars, tabs bar & status bar */
/* tested on default theme only and firefox 2.0 */

/* Transparency */

#navigator-toolbox {
   -moz-appearance: none !important;
   background-color: transparent !important;
}

#browser .plain { background-color: transparent !important; }

.tabbrowser-tabs {
   background-image: none !important;
   background-color: transparent !important;
}

#urlbar:not([level="high"]):not([level="low"])  {
   background-color: transparent !important; 
}

.searchbar-textbox { background-color: transparent !important; }

#status-bar {
   -moz-appearance: none !important;
   background-color: transparent !important;
}

/* background image -> it will eat some RAM resource (2 Mo) */
#main-window {
   -moz-appearance: none !important;
   /* choose your image thanks to Stylish > Insert > URI Data */
    background-image: url("http://www.enregistrersous.com/images/145679654120071022174003.jpg") !important;
}
/* Background Image for toolbars & statusbar, more readable */
#navigator-toolbox, #status-bar {
   /* choose your (transparent & clear) image thanks to Stylish > Insert > URI Data */
   background-image: url("
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAG4AAAAVCAYAAACnvtv5AAAABGdBTUEAALGPC/xhBQAAABh0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjAxHK4kRQAAAHhJREFUaEPt10EKwCAMRFG9/77XTbEX6EYGBp7gViHfn4l7Zp5l9VXggLP7arBA64P2dUnggNNyg7HDuGCxb3Y34IDrzIqbFiTPYhzjGMe4UguAA+73ayXjSh8JcMAZTmRcqQXAAWc4SVqQvMtwUmo3cMCZKpOt8gUvXLyfLua7ewAAAABJRU5ErkJggg==
        ") !important;
}

/* Allows searchbar & urlbar readable */
.searchbar-textbox, #urlbar:not([level="high"]):not([level="low"]) > 
                     .autocomplete-textbox-container {
   /* choose your (transparent & clear) image thanks to Stylish > Insert > URI Data */
   background-image: url("
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAG4AAAAVCAYAAACnvtv5AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAABh0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjAxHK4kRQAAAHhJREFUaEPt18EJACEMRFEtbfsvKovbwF5kYOAJXhXy/Zm4Z+ZZVl8FDji7rwYLtD5oX5cEDjgtNxg7jAsW+2Z3Aw64zqy4aUHyLMYxjnGMK7UAOOB+v1YyrvSRAAec4UTGlVoAHHCGk6QFybsMJ6V2AwecqTLZKl8cVeGlDmCZVQAAAABJRU5ErkJggg==
     ") !important;
        }

/* chose Font color, don't forget to UNcomment -> *
#main-window toolbarbutton {
color: #FFFFFF !important;
}

#main-window toolbarbutton:hover {
color:#000000 !important;
}

#status-bar {
color: #0000FF !important;
}
/* you also can change menubar font color */

/*-------------------------------------------------------------------
    Sliding Menubar for Stylish
    by LouCypher (aka Zoolcar9)

    Hides the main-menubar.
    Move your mouse to Firefox icon to display the main-menubar.

    If you're using userChrome.css, use the code at
    http://zoolcar9.lhukie.net/mozilla/userstyles/slidingMenubar.css
  -------------------------------------------------------------------*/

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

#menubar-items {
  background-image: url("data:image/png;base64,
iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAACXBIWXMAAAsSAAALEgHS
3X78AAAABGdBTUEAALGOfPtRkwAAACBjSFJNAAB6JQAAgIMAAPn/AACA6QAAdTAAAOpg
AAA6mAAAF2+SX8VGAAAEJElEQVR42mL8//8/g56kvvbvf4wfrr+88JQBCDiNaoSY/v4M
+sfMbgriSwp+eK3Lf/qDHO8n11u3mS8fOclQ9/XvlW8gOYAAYgERZSlGi1TUtaQc7NK0
rn3nmxBsyBlnqybAcP2XLMN7bmmGV68/Mry6ycOwMHT/f34eZrclO7kiZXh0Y558ubwf
IIAYQS44OqXgjYGloTDTi+0MjEysDD9EgxhmHv7AwKFuwMAoLMHw5x8Dw9effxjET9Yx
pJpdZ/jLwMKw9yzzp+j6d/YAAQBBAL7/AiASNBEA+eoCBvXTAAAD/AD6AyYA/9+2APTN
ngDDu74A2Ov1AOPy+QDx+v4Azyx9AJDOOgADAPwARzb6Di4hAmUCiDnOWas1zovf6fe3
Fwx/Xj1m+PvuNcNfZlkGczV5hiWnXzKc59FieP7lD8PXX38ZfgKdcuqbHIMf2y4Gbk5g
WP1nkgUIAEEAvv8EEQPzJf/u4QD9AQQA/fL1AAL8/gAOCOcAlM4CAMQWUgD87/gABQP6
AOYFAQATCgUA9/X+AN/qAgAWE/8AQCwEFQIAQQC+/wTt9f0D/ezvAP4FAAD8+P8A6N72
AH647gDHDDMA/SgQAAD8/AD7/gIA7/wBAPn7/QD829UA7CT9AAAsBACw0QYDAojp64MP
wn9eAw349o3h21dmBmZWFgZ93rcMHDx8DOuepzJU3ahk4L9+mOHvv78Mn7//ZuB9fY3B
U+0/0P0cDNzifxkAAgBBAL7/AuDqBOLz4PMAAPLyAAwMBwARIxwAbDUFAMIhpgA7EekA
cB3SADLyzgAA/P0AAff1ACb/4AACIgwAAAsHAPXpAwACAEEAvv8C2fcBotTV/AD96/YA
BP7qAAz/7AAB/fcAuMz0AFu/LAAd1W0AwDBoAAL39QBIzpEAmEHnAAAZLQD++QAAjrPx
swIAQQC+/wP0/uzd7vgXbTz/8wkGEv0ABQ8NAAH25AAUEgwAwfETAO0EFAAV5M8Aae6o
AJpK8AAVUC8AAO/9AIKH1QCzyPVVAgickLgFzPLrf1ye4K71g4HXQpBBUI4d6OT/DGxf
uBn+/vrP8A8YkEzsTAzMOn8Z2OUUGM5u/MjgsoTryJe3Jx0BAghsACMjI7egkMXe4o+X
zF15vjFwqjAx8KhyM/CKczMwsjEA0x0bAyPrfwYOuX8Mu85wMyRt4X/4+sVpc6DelwAB
BDOAEZglRNjEHWcbfH3mH/btIYPmvx8MQEsZ2MUYGdhVWBhesPMyzH8qwrD9g8TFHy8O
hQLVPwDq/Q0QQGADQABoBlA5gyATl5QpC596LdAT+lz//nIzMvxn+MbE+usHI8vTf38/
zvrz6uQyoLoXQH2/QPoAAghuAAwADeIAuQaIRYGYl4lLgu/ftxevgew3QPwKiL8C9fyD
qQcIMACDoJbT47bbfAAAAABJRU5ErkJggg==") !important;
  background-repeat: no-repeat !important;
  background-position: 5px center !important;
  padding-left: 24px !important;
}

#menubar-items > #main-menubar {
  display: none !important;
}

#menubar-items:hover > #main-menubar {
  display: -moz-box !important;
}

@namespace url(http://www.w3.org/1999/xhtml);
*{ background:#000000 !important; 
  color:#00AA00 !important;
  background-image: url(путь к файлу)
  background-repeat: repeat !important;}
a{ color:#0040FF !important;}
a:visited { color:#8040FF !important;}
a:hover { color:#CCCCCC !important;}