diff --git a/userChrome.css b/userChrome.css
index 547e561..043fffb 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -69,8 +69,6 @@
   /** Root - Reduce Padding ***************************************************/
   :root {
     /* Tab Bar */
-    --proton-tab-block-margin: 2px !important; /* Original: 4px */
-    --tab-block-margin:        2px !important; /* New version of --proton-tab-block-margin */
     --inline-tab-padding:      6px !important; /* Original: 8px */
 
     /* Panel */
@@ -207,34 +205,7 @@
     background-position-y: bottom calc(.5px + var(--tabs-navbar-shadow-size)) !important;
   }
 
-  /** Tab Bar - Connect to window *********************************************/
-  .tab-background {
-    border-radius: var(--tab-border-radius) var(--tab-border-radius) 0px 0px !important;
-    margin-bottom: 0px !important;
-  }
-
-  .tab-content {
-    margin-top: var(--tab-block-margin);
-  }
-
-  .tab-stack {
-    margin-top:    0px !important;
-    margin-bottom: 0px !important;
-  }
-
   /** Selected Tab - Color like toolbar ***************************************/
-  :root:not(:-moz-lwtheme) {
-    /* Fix for windows's system default theme. Using --toolbar-bgcolor fallback */
-    --tab-selected-bgcolor: unset !important; /* Original: rgb(255,255,255); */
-  }
-#tabbrowser-tabs:not([movingtab]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab > .tab-stack > .tab-background[selected="true"]:-moz-lwtheme {
-    /* Original: linear-gradient(var(--lwt-selected-tab-background-color, transparent), var(--lwt-selected-tab-background-color, transparent)), linear-gradient(var(--toolbar-bgcolor), var(--toolbar-bgcolor)), var(--lwt-header-image, none)
- */
-    background-image: linear-gradient(transparent, transparent),
-                      linear-gradient(var(--toolbar-bgcolor), var(--toolbar-bgcolor)),
-                      var(--lwt-header-image, none) !important;
-  }
-
   /* Multi Selected Color */
   #tabbrowser-tabs:not([movingtab]) > #tabbrowser-arrowscrollbox > .tabbrowser-tab > .tab-stack > .tab-background[multiselected]:not([selected]):-moz-lwtheme {
     background-image: linear-gradient(var(--toolbar-bgcolor, transparent), var(--toolbar-bgcolor, transparent)),
@@ -250,60 +221,6 @@
     opacity: .15;
   }
 
-  /** Selected Tab - Box Shadow ***********************************************/
-  #TabsToolbar[brighttext] #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab[visuallyselected="true"]:not(:focus) > .tab-stack > .tab-background:-moz-lwtheme {
-    /* Origina: 0 0 1px var(--tab-line-color, rgba(128,128,142,0.9))
-       Bright: 0 0 1px var(--tab-line-color, rgba(128,128,142,0.9)), 0 0 4px rgba(128,128,142,0.5) */
-    box-shadow: 0 0 1px var(--toolbar-color) !important;
-  }
-  #TabsToolbar[brighttext] #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab[multiselected]:not([visuallyselected]) > .tab-stack > .tab-background:-moz-lwtheme {
-    box-shadow: 0 0 1px color-mix(in srgb, var(--toolbar-color) 80%, transparent)  !important;
-  }
-
-  /* Pinned Tab - tabbrowser-arrowscrollbox overflowing */
-  #tabbrowser-tabs[positionpinnedtabs] > #tabbrowser-arrowscrollbox > .tabbrowser-tab[pinned] {
-    z-index: 0 !important;
-  }
-
-  /** Selected Tab - Bottom Rounded Corner ************************************/
-  #tabbrowser-tabs {
-    --tab-corner-rounding: 4px; /* 10px looks about like chromium - 17px looks close to Australis tabs */
-    --tab-corner-padding:  1px;
-  }
-
-  :root[lwtheme="true"] tab[visuallyselected] > stack::before,
-  :root[lwtheme="true"] tab[visuallyselected] > stack::after {
-    /* Box */
-    content: "" !important;
-    display: block !important;
-    position: absolute !important;
-    z-index: 1 !important;
-
-    /* Shape */
-    width:  var(--tab-corner-rounding) !important;
-    height: 100% !important;
-
-    /* Color */
-    fill:   var(--toolbar-bgcolor) !important;
-    stroke: var(--tabs-border-color, transparent) !important;
-    -moz-context-properties: fill, stroke !important;
-
-    /* Image */
-    background-size:   var(--tab-corner-rounding);
-    background-repeat: no-repeat;
-    background-position-y: bottom;
-  }
-
-  :root[lwtheme="true"] tab[visuallyselected] > stack::before {
-    left: calc(var(--tab-corner-padding) - var(--tab-corner-rounding)) !important;
-    background-image: url(./icons/tab-bottom-corner-left.svg);
-  }
-  :root[lwtheme="true"] tab[visuallyselected] > stack::after {
-    left:  auto;
-    right: calc(var(--tab-corner-padding) - var(--tab-corner-rounding));
-    background-image: url(./icons/tab-bottom-corner-right.svg);
-  }
-
   /** Unselected Tab - Divide line ********************************************/
   #tabbrowser-arrowscrollbox {
     position: absolute;
@@ -344,43 +261,6 @@
   }
 
   /* New tab button - Looks like tab ******************************************/
-  #tabs-newtab-button {
-    /* Original:
-    margin: 0 0 var(--tabs-navbar-shadow-size) !important
-    => Can't ovrride style. Therefore, we should approach it by bypass.
-    */
-    --tabs-navbar-shadow-size: -1px; /* Original: 1px */
-    --tabs-navbar-original-shadow-size: 1px;
-
-    /* Size */
-    -moz-box-align: stretch !important;
-    padding-top: var(--tab-block-margin) !important;
-  }
-
-  #tabs-newtab-button > .toolbarbutton-icon {
-    border-radius: var(--tab-border-radius) var(--tab-border-radius) 0 0 !important; /* Original: var(--tab-border-radius) */
-  }
-
-  /* Coner Rounding */
-  #tabs-newtab-button:hover {
-    /* Color */
-    fill: color-mix(in srgb, currentColor 17%, transparent) !important; /* Replace var(--toolbarbutton-hover-background) - Hard coded for compatibility */
-    -moz-context-properties: fill !important;
-
-    /* Corner Image */
-    --newtab-position: calc((var(--tab-corner-rounding) / 2) * -1);
-    background-image: url("./icons/tab-bottom-corner-left.svg"), url("./icons/tab-bottom-corner-right.svg");
-    background-repeat: no-repeat;
-    background-position: left var(--newtab-position) bottom var(--tabs-navbar-original-shadow-size),  right var(--newtab-position)  bottom var(--tabs-navbar-original-shadow-size);
-    background-size: var(--tab-corner-rounding);
-  }
-
-  #tabs-newtab-button .toolbarbutton-icon {
-    padding: calc(var(--toolbarbutton-inner-padding) - (var(--tab-block-margin) / 4)) var(--toolbarbutton-inner-padding) calc(var(--toolbarbutton-inner-padding) + (var(--tab-block-margin) / 4) + var(--tabs-navbar-original-shadow-size)) !important;
-    -moz-context-properties: fill, fill-opacity;
-    fill: var(--toolbarbutton-icon-fill);
-    fill-opacity: var(--toolbarbutton-icon-fill-opacity);
-  }
 
   /** Clipped tabs - Letters cleary *******************************************/
   #tabbrowser-tabs[closebuttons=activetab] .tab-content:not([pinned]) {