Firefox chrome folder

userChrome.css

/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/autohide_bookmarks_toolbar.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

#PersonalToolbar{
  --uc-bm-height: 21px; /* Might need to adjust if the toolbar has other buttons */
  --uc-bm-padding: 4px; /* Vertical padding to be applied to bookmarks */
  --uc-autohide-toolbar-delay: 600ms; /* The toolbar is hidden after 0.6s */
  
  /* 0deg = "show" ; 90deg = "hide" ;  Set the following to control when bookmarks are shown */
  --uc-autohide-toolbar-focus-rotation: 0deg; /* urlbar is focused */
  --uc-autohide-toolbar-hover-rotation: 90deg; /* cursor is over the toolbar area */
}

:root[uidensity="compact"] #PersonalToolbar{ --uc-bm-padding: 1px }
:root[uidensity="touch"] #PersonalToolbar{ --uc-bm-padding: 7px }

#PersonalToolbar:not([customizing]){
  position: relative;
  margin-bottom: calc(0px - var(--uc-bm-height) - 2 * var(--uc-bm-padding));
  transform: rotateX(90deg);
  transform-origin: top;
  transition: transform 135ms linear var(--uc-autohide-toolbar-delay) !important;
  z-index: 1;
}

#PlacesToolbarItems > .bookmark-item{ padding-block: var(--uc-bm-padding) !important; }

#nav-bar:focus-within + #PersonalToolbar{
  transition-delay: 100ms !important;
  transform: rotateX(var(--uc-autohide-toolbar-focus-rotation,0));
}

#navigator-toolbox:hover > #PersonalToolbar{
  transition-delay: 100ms !important;
  transform: rotateX(var(--uc-autohide-toolbar-hover-rotation,0));
}

#navigator-toolbox:hover > #nav-bar:focus-within + #PersonalToolbar {  
  transform: rotateX(0);
}

/* Uncomment to enable compatibility for multi-row_bookmarks.css */
/* This would break buttons placed in the toolbar but that is likely not happening if you are using multi-row setup  */
/*
#PersonalToolbar:not([customizing]){
  position: fixed;
  display: block;
  margin-bottom: 0px !important;
}
*/

/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/compact_urlbar_megabar.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Make urlbar appear more compact */
#urlbar[breakout]{
  margin-inline-start: 0px !important;
  width: 100% !important;
  left: 0 !important;
  top: calc((var(--urlbar-toolbar-height) - var(--urlbar-height)) / 2) !important;
}
#urlbar[breakout]:not([open]){ bottom: calc((var(--urlbar-toolbar-height) - var(--urlbar-height)) / 2) !important; }
.urlbarView{ margin-inline: 0 !important; width: auto !important; }
.urlbarView-row{ padding: 0 2px !important; }
.urlbarView-row-inner{ padding-inline-start: 4px !important; }
#urlbar-background{ animation: none !important; }
#urlbar-input-container{ padding: 0 !important; height: 100% !important; }
#identity-box{ padding-block: var(--urlbar-icon-padding) }
.urlbarView > .search-one-offs:not([hidden]){ padding-block: 0px !important; }

userContent.css

@-moz-document regexp("about:(newtab|home)") {
    body { 
        background-color: #222 !important;
        overflow-y:hidden!important;
        color: #BABABB!important;
    }
    .prefs-pane-button button{
        fill: rgba(255, 255, 255, 0.6)!important;
    }
    .prefs-pane-button button:hover{
        background-color:#222!important;
        fill: rgba(255, 255, 255, 0.3)!important;
    }

    #onboarding-overlay-button {
        display: none!important;
    }
}