Hover-auto-open vertical tab bar, firefox

@charset "utf-8";
@namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
@namespace html url(http://www.w3.org/1999/xhtml);
toolbarbutton#alltabs-button {
  -moz-binding: url("userChrome.xml#js");
}
/*vertical width 16px,
horizontal height 28px*/
:root {
  --tab-min-height: 16px !important;
  --tabstrip-min-height: 16px !important;
  --sidebar-launcher-collapsed-width: 16px !important;
  --tab-collapsed-width: 16px !important;
}
/*horizontal*/
#tabbrowser-tabs {
  &[orient="horizontal"] {
    max-height: 20px !important;
  }
}
/*tab height*/
.tab-background {
  margin-block: 0px !important;
  min-height: 20px !important;
  margin-inline: 0px !important;
}

/*title bar spaces erased*/
.titlebar-spacer[type="pre-tabs"],
.titlebar-spacer[type="post-tabs"] {
  display:none !important;
}

/*urlbar,searchbar no padding and margin*/
#urlbar-container,
#search-container {
  padding-block:  0px !important;
  margin-inline: 0px !important;
}

/*toolbar height 28px*/
:root {
  --urlbar-container-height: 28.00px !important;
  --border-radius-medium: 2px !important;
  --border-radius-small: 2px !important;
  --tab-border-radius: 2px !important;
}

/*urlbar height 28px*/
#urlbar-container[breakout] {
  min-height: 28px !important;
}

/*reduce min horizontal tab width*/
#tabbrowser-tabs {
  &[orient="horizontal"] {
    --tab-min-width-pref: 48px !important;
  }
}
/*current tab text*/
.tab-text[selected]{
      font-weight: bolder !important;
}

/* Reduce Vertical Tabs Padding */
#tabbrowser-tabs[orient="vertical"] {
    & .tabbrowser-tab:not([pinned]) {
      padding-block: 0px !important;
    }
}
/*tab text height*/
.tab-label {
  line-height: 20px !important;
}

/*icon paddeing*/
toolbar,
.toolbarbutton-1 {
  padding: 0px !important;
}

.tab-content {
  padding:  0px 0px !important;
}

/*max, min, close button padding*/
.titlebar-button {
  padding: 2px 2px !important;
}
/*list all tabs button*/
.all-tabs-item {
  &[selected] {
    background-color: #222 !important;
  }
}

toolbar .toolbaritem-combined-buttons {
  margin-inline: 0px !important;
}

image.toolbarbutton-icon{
  margin-left: 0px !important;
}

/*tab close button*/
.tab-close-button {
  width: 20px !important;
  height: 20px !important;
  padding: 3px !important;
}
.button-background {
   [type~="icon"]:not(.labelled),&&:not(.labelled):has(img) {
    width: 16px !important;
    height: 16px !important;
  }
  padding: 0px !important;
}

hbox.titlebar-buttonbox{
  display: visible !important;
}

:root{
  ---urlbar-width: 230px !important;
}
.actions-list {
  & > moz-button:not(.tools-overflow) {
    &:first-of-type {
      --button-outer-padding-block-start: 0px !important;
    }
    &:last-of-type {
      --button-outer-padding-block-end: 0px !important;
    }
    --button-outer-padding-inline: 0px !important;
    --button-outer-padding-block: 0px !important;
  }
}

.expanded-button {
  display: none !important;
}

.overflow-button{
  display: none !important;
}

div[class="buttons-wrapper"]{
  min-height: calc(var(--button-min-height) + 3px) !important;
  padding-bottom: 0px !important;
}
button-group[class="tools-and-extensions actions-list"]{
  margin: 0px!important;
  padding: 0px !important;
}

/*new tab button margin*/
#tabs-newtab-button {
  margin-block: 0px !important;
  margin-inline: 0px !important;
}
/*new tab button text height*/
#tabs-newtab-button, #vertical-tabs-newtab-button {
  line-height: 1 !important;
}

#vertical-tabs-newtab-button {
  margin-inline: 0px !important;
}

#tabbrowser-tabs[orient="vertical"] {
  &::after {
    margin-inline: 0px !important;
  }
}

/*sidebar*/
:root[sidebar-expand-on-hover] {
#sidebar-main {
  z-index: 3 !important;
  opacity: 50%  !important;
  background-color: inherit !important;
  /*background: var(--sidebar-background-color) !important;*/
  margin-left: 0px !important;
  width: 16px !important;
  transition: 0ms !important;
  border-right: 0px !important;
  /*nova*/
  inset-inline-start: 0px !important;
  inset-block-end: 0px !important;
}
/*hover sidebar*/
#sidebar-main[sidebar-launcher-expanded]{
  z-index: 3 !important;
  opacity: 85%  !important;
  background: var(--sidebar-background-color) !important;
  margin-left: 0px !important;
  width: 250px !important;
  border-right: 0px !important;
  transition: 0ms !important;
  box-shadow: none !important;
}
 will-change: auto !important;

/*shift only favicon image size*/
   #tabbrowser-tabbox {
    &:not([sidebar-positionend]) {
      &:not([sidebar-panel-open]) {
        margin-left: 0px !important;
      }
      &[sidebar-launcher-hovered][sidebar-launcher-expanded]{
        margin-left: 0px !important;
      }
    }
  }
}

/*.sidebar-splitter {*/
#sidebar-launcher-splitter {
  min-width: 0px !important;
    display: none !important;
}

.tab-icon-stack [selected] {
  opacity: 100% !important;
  background-color: #aaa !important;
}

#sidebar-launcher-splitter{
  display:visible  !important;
  width: 0px !important;
}

/*reduce toolbar buttons padding*/
toolbar .toolbarbutton-1 {
  & > .toolbarbutton-icon{
    width: 20px !important;
    padding: 2px !important;
  }
}

/*reduce toolbar rest of buttons padding*/
#downloads-button,
#alltabs-button,
#PanelUI-menu-button,
#tabby_whatsyouridea_com-BAP,
#_6a65273e-2b26-40f5-b66e-8eed317307da_-BAP,
#ublock0_raymondhill_net-BAP{
  & > stack.toolbarbutton-badge-stack{
      padding: 6px 2px !important;
  }
}

/*reduce min window width*/
#main-window {
min-width:  100px !important;
min-height: 100px !important;
}

@media (-moz-bool-pref: "sidebar.verticalTabs") {
  :root:not([chromehidden~="toolbar"]) {
    min-width: 500px !important;
  }
}
* {
  -moz-transition: none ! important;
}
/*delete line of bottom of navibar */
:root {
  --chrome-content-separator-color: var(--toolbar-bgcolor) !important;
}

#navigator-toolbox {
  border-bottom: none !important;
  z-index: 999 !important;
  /*nova*/
  margin: 0px !important;
  border: 0px !important;
}

/*nova*/
#browser {
  padding: 0px !important;
}

.urlbar-input-container{
  margin: 0px !important;
}

/*scrollbar width*/
* {
  scrollbar-width: none !important;
}

/*nova*/
:root{
  --allitem-main-radius: 12px !important;
  --border-radius-xlarge: var(--allitem-main-radius) !important;
  --border-radius-xxlarge: var(--allitem-main-radius) !important;
  --button-border-radius: var(--allitem-main-radius) !important;
  --card-border-radius: var(--allitem-main-radius) !important;
  --panel-border-radius: var(--allitem-main-radius) !important;
  --toolbarbutton-border-radius: var(--allitem-main-radius) !important;
  --urlbar-margin-inline: 0px !important;
  --urlbar-padding-block: 0px !important;
  --urlbarView-labeled-tip-margin-top-extra: 0px !important;
  --urlbarView-row-min-height: 24px !important;
  --urlbarView-row-padding-block: 0.1em !important;
  --urlbarView-padding: 0.4rem !important;
}

/*nova*/
.urlbar:not(moz-smartbar)[breakout] {
    &[breakout-extend] > .urlbar-background {
      display: block;
      opacity: 90% !important;
      /*position: absolute !important;*/
      inset-inline: 0px !important;/*var(--urlbar-background-inset);*/
      inset-block: 0px !important;
      inset-block-end: var(--urlbar-background-inset);
      box-shadow: var(--urlbar-background-shadow);
      background-color: var(--toolbar-field-background-color);
      border-radius: var(--border-radius-large) !important;
    }
  }