diff --git a/install.sh b/install.sh
index 6513de3..e44ec9c 100755
--- a/install.sh
+++ b/install.sh
@@ -236,7 +236,7 @@ set_ini_value() {
 #== Multiselect ================================================================
 # https://stackoverflow.com/questions/45382472/bash-select-multiple-answers-at-once/54261882
 multiselect() {
-  echo 'Select with <space>, Done with <enter>!!!'
+  echo 'Select with <space>, confirm with <enter>'
 
   # little helpers for terminal print control and key input
   ESC=$( printf "\033")
diff --git a/userChrome.css b/userChrome.css
index 9fcb4d7..fcb5ce3 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -1,5 +1,5 @@
-@namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
-@namespace html url("http://www.w3.org/1999/xhtml");
+@namespace xul "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+@namespace html "http://www.w3.org/1999/xhtml";
 
 @media (-moz-proton) {
   /** Default Thme - Contrast *************************************************/
@@ -7,7 +7,7 @@
   :root[lwtheme-mozlightdark]:not([lwthemetextcolor="bright"]) {
     --lwt-accent-color: rgb(229, 229, 235) !important; /* Original: rgb(240, 240, 244) */
   }
-  @media not all and ((-moz-os-version: windows-win7) or  (-moz-os-version: windows-win8)) {
+  @media not all and ((-moz-os-version: windows-win7) or (-moz-os-version: windows-win8) or (-moz-gtk-csd-available)) {
     /*  Level 4  */
     :root[lwtheme-mozlightdark]:not([lwthemetextcolor="bright"]) #navigator-toolbox {
       background-color: var(--lwt-accent-color) !important;
@@ -564,10 +564,13 @@
       }
     }
     #unknownContentType {
+      -moz-appearance: none !important; /* For Mac */
       color: var(--in-content-page-color) !important;
       background-color: var(--in-content-page-background) !important;
+      /* border-radius: 0 0 8px 8px !important; */
     }
 
+    /*- Button ---------------------------------------------------------------*/
     button {
       -moz-appearance: none !important;
       color: var(--in-content-button-text-color) !important;
@@ -585,7 +588,29 @@
       margin-inline: 4px !important;
       min-width: 6.3em !important;
     }
-    button:-moz-focusring {
+
+    /* Medium and small buttons get sized to 7/14 and 6/12px padding (when adding
+     * the 1px border): */
+    button.medium {
+      padding: 6px 13px !important;
+      min-height: 28px !important;
+      font-size: 0.95em !important;
+    }
+    button.small {
+      padding: 5px 11px !important;
+      min-height: 24px !important;
+      font-size: 0.9em !important;
+    }
+
+    /* Remove margin added by button.css */
+    xul|button > .button-box > .button-text {
+      margin: 0 !important;
+    }
+
+    button:-moz-focusring,
+    xul|menulist:-moz-focusring,
+    xul|checkbox:-moz-focusring > .checkbox-check, /* :not([native]) to win specificity over checkbox.css */
+    xul|radio[focused="true"] {
       box-shadow: none !important;
       outline: 2px solid var(--in-content-focus-outline-color) !important;
       outline-offset: 2px !important;
@@ -595,13 +620,417 @@
       color: var(--in-content-button-text-color-hover) !important;
       border-color: transparent !important;
     }
-    button[open],
-    button[open]:hover {
-      background-color: var(--in-content-button-background-active);
+
+    xul|button:not([disabled="true"]):hover:active,
+    xul|button[open],
+    xul|button[open]:hover,
+    xul|menulist[open="true"]:not([disabled="true"]) {
+      background-color: var(--in-content-button-background-active) !important;
     }
-    button[disabled="true"],
-    menulist[disabled="true"] {
-      opacity: 0.4;
+
+    xul|button[default] {
+      background-color: var(--in-content-primary-button-background) !important;
+      color: var(--in-content-primary-button-text-color) !important;
+    }
+    xul|button[default]:not([disabled="true"]):hover {
+      background-color: var(--in-content-primary-button-background-hover) !important;
+      color: var(--in-content-primary-button-text-color) !important;
+    }
+    xul|button[default]:not([disabled="true"]):hover:active {
+      background-color: var(--in-content-primary-button-background-active) !important;
+    }
+
+    xul|button[disabled="true"],
+    xul|menulist[disabled="true"] {
+      opacity: 0.4 !important;
+    }
+    xul|button:not([disabled="true"]):hover,
+    xul|menulist:not([disabled="true"]):hover {
+      background-color: var(--in-content-button-background-hover) !important;
+      color: var(--in-content-button-text-color-hover) !important;
+      border-color: transparent !important;
+    }
+
+    @media (prefers-contrast) {
+      xul|button[default]:not([disabled="true"]):hover {
+        border-color: currentColor !important;
+      }
+
+      button:focus {
+        color: var(--in-content-button-text-color) !important;
+      }
+
+      xul|button[default]:focus,
+      button.primary:focus {
+        color: var(--in-content-primary-button-text-color) !important;
+      }
+    }
+
+    /*- Radio Button ---------------------------------------------------------*/
+    xul|radio {
+      /* margin-inline-start: 0 !important; */
+      appearance: none !important;
+    }
+
+    xul|*.radio-check {
+      appearance: none !important;
+      width: 16px !important;
+      height: 16px !important;
+      padding: 0 !important;
+      border: 1px solid var(--in-content-box-border-color) !important;
+      border-radius: 100% !important;
+      margin-block: 2px !important; /* extend the vertical clicktarget */
+      margin-inline: 0 6px !important;
+      background-color: var(--in-content-button-background) !important;
+      background-position: center !important;
+      flex-shrink: 0 !important; /* avoid shrinking inside flex container */
+    }
+
+    xul|radio:not([disabled="true"]):hover > xul|*.radio-check {
+      background-color: var(--in-content-button-background-hover) !important;
+      color: var(--in-content-button-text-color-hover) !important;
+    }
+
+    xul|radio:not([disabled="true"]):hover:active > xul|*.radio-check {
+      background-color: var(--in-content-button-background-active) !important;
+    }
+
+    xul|*.radio-check[selected] {
+      -moz-context-properties: fill !important;
+      fill: currentColor !important;
+      color: var(--in-content-primary-button-text-color) !important;
+      background-color: var(--in-content-primary-button-background) !important;
+      background-image: url("chrome://global/skin/icons/radio.svg") !important;
+      border-color: transparent !important;
+
+      /* Style the button also when printing with "Print Backgrounds" unchecked */
+      color-adjust: exact !important;
+    }
+
+    xul|radio:not([disabled="true"])[selected]:hover > xul|*.radio-check {
+      background-color: var(--in-content-primary-button-background-hover) !important;
+      color: var(--in-content-primary-button-text-color-hover) !important;
+    }
+
+    xul|radio:not([disabled="true"])[selected]:hover:active > xul|*.radio-check {
+      background-color: var(--in-content-primary-button-background-active) !important;
+    }
+
+    xul|*.radio-label-box {
+      margin-inline: 0 8px !important;
+      padding-inline-start: 0 !important;
+    }
+
+    /* Disabled checkboxes, radios and labels */
+    xul|checkbox[disabled="true"],
+    xul|radio[disabled="true"],
+    xul|label[disabled="true"] {
+      color: inherit !important;
+    }
+
+    xul|checkbox[disabled="true"],
+    xul|radio[disabled="true"],
+    xul|label[disabled="true"] {
+      opacity: 0.5 !important;
+    }
+
+    /*- Check Box ------------------------------------------------------------*/
+    /* From checkbox.css */
+    checkbox {
+      appearance: none !important;
+      -moz-box-align: center !important;
+      margin: 4px 2px !important;
+    }
+
+    .checkbox-icon[src] {
+      margin-inline-end: 2px !important;
+    }
+    .checkbox-label {
+      margin: 1px 0 !important;
+    }
+
+    checkbox[disabled="true"] {
+      opacity: 0.4 !important;
+    }
+
+    .checkbox-check {
+      appearance: none !important;
+      color: var(--checkbox-border-color, ThreeDDarkShadow) !important;
+      background-color: var(--checkbox-unchecked-bgcolor, Field) !important;
+      border: 1px solid currentColor !important;
+      border-radius: 2px !important;
+      margin-inline-end: 6px !important;
+    }
+
+    .checkbox-check {
+      height: 16px !important;
+      width: 16px !important;
+    }
+
+    checkbox:not([disabled="true"]):hover > .checkbox-check {
+      background-color: var(
+        --checkbox-unchecked-hover-bgcolor,
+        color-mix(in srgb, -moz-accent-color 4%, Field)
+      ) !important;
+    }
+
+    checkbox:not([disabled="true"]):hover:active > .checkbox-check {
+      background-color: var(
+        --checkbox-unchecked-active-bgcolor,
+        color-mix(in srgb, -moz-accent-color 8%, Field)
+      ) !important;
+    }
+
+    .checkbox-check[checked] {
+      border-color: var(--checkbox-checked-border-color, transparent) !important;
+      background-color: var(--checkbox-checked-bgcolor, -moz-accent-color) !important;
+      background-image: url("chrome://global/skin/icons/check.svg") !important;
+      background-position: center !important;
+      background-repeat: no-repeat !important;
+      -moz-context-properties: fill !important;
+      fill: currentColor !important;
+      color: var(--checkbox-checked-color, -moz-accent-color-foreground) !important;
+      /* Style the button also when printing with "Print Backgrounds" unchecked */
+      color-adjust: exact !important;
+    }
+
+    checkbox:not([disabled="true"]):hover > .checkbox-check[checked] {
+      background-color: var(
+        --checkbox-checked-hover-bgcolor,
+        color-mix(in srgb, currentColor 12.5%, -moz-accent-color)
+      ) !important;
+    }
+
+    checkbox:not([disabled="true"]):hover:active > .checkbox-check[checked] {
+      background-color: var(
+        --checkbox-checked-active-bgcolor,
+        color-mix(in srgb, currentColor 25%, -moz-accent-color)
+      ) !important;
+    }
+
+    checkbox:-moz-focusring > .checkbox-check {
+      outline: 2px solid var(--focus-outline-color, -moz-accent-color) !important;
+      outline-offset: var(--focus-outline-offset, 2px) !important;
+    }
+
+    @media (prefers-contrast) {
+      checkbox:not([disabled="true"]):hover > .checkbox-check {
+        /* color will set the border-color on the check due to how HCM works for in-content pages. */
+        color: var(--checkbox-checked-border-color, color-mix(in srgb, -moz-accent-color 4%, Field)) !important;
+      }
+
+      .checkbox-check[checked] {
+        color: var(--checkbox-checked-border-color, currentColor) !important;
+        fill: var(--checkbox-checked-color, -moz-accent-color-foreground) !important;
+      }
+
+      checkbox:not([disabled="true"]):hover:active > .checkbox-check[checked],
+      checkbox:not([disabled="true"]):hover > .checkbox-check[checked] {
+        color: var(--checkbox-checked-border-color-hover, -moz-accent-color-foreground) !important;
+        fill: var(--checkbox-checked-border-color-hover, -moz-accent-color-foreground) !important;
+      }
+    }
+
+    /* From common.css */
+    xul|*.checkbox-check {
+      margin-block: 2px !important;
+    }
+    xul|richlistitem > xul|*.checkbox-check {
+      margin: 3px 6px !important;
+    }
+
+    /*- Menulist -------------------------------------------------------------*/
+    /* From mulist.css */
+    xul|menulist {
+      appearance: none !important;
+      background-color: var(--in-content-button-background, ButtonFace) !important;
+      color: var(--in-content-button-text-color, ButtonText) !important;
+      border-radius: 4px !important;
+      padding-block: 4px !important;
+      padding-inline: 12px 8px !important;
+      margin: 5px 2px 3px !important;
+    }
+
+    xul|menulist[size="medium"] {
+      padding-block: 6px !important;
+      padding-inline: 16px 10px !important;
+    }
+
+    xul|menulist[size="large"] {
+      padding-block: 8px !important;
+      padding-inline: 16px 12px !important;
+    }
+
+    xul|menulist:hover {
+      background-color: var(--button-hover-bgcolor, color-mix(in srgb, currentColor 10%, ButtonFace)) !important;
+    }
+
+    xul|menulist:hover:active {
+      background-color: var(--button-active-bgcolor, color-mix(in srgb, currentColor 20%, ButtonFace)) !important;
+    }
+
+    xul|menulist:-moz-focusring {
+      outline: 2px solid var(--focus-outline-color, -moz-accent-color) !important;
+      outline-offset: var(--focus-outline-offset, 2px) !important;
+    }
+
+    #label-box {
+      -moz-box-align: center !important;
+      -moz-box-pack: center !important;
+      font-weight: 600 !important;
+    }
+
+    dropmarker {
+      display: -moz-box !important;
+      appearance: none !important;
+      width: 12px !important;
+      height: 12px !important;
+    }
+
+    dropmarker::part(icon) {
+      list-style-image: url(chrome://global/skin/icons/arrow-down.svg) !important;
+      -moz-context-properties: fill !important;
+      fill: currentColor !important;
+    }
+
+    #highlightable-label:not([highlightable="true"]),
+    #label[highlightable="true"] {
+      display: none !important;
+    }
+
+    label {
+      margin: 0 3px !important;
+    }
+
+    /* From common.css */
+    xul|menulist > xul|menupopup {
+      appearance: none !important;
+
+      /* Reset native styles on Windows and macOS */
+      border: none !important;
+      background-color: transparent !important;
+
+      --panel-border-color: var(--in-content-box-border-color) !important;
+      --panel-border-radius: 2px !important;
+      --panel-background: var(--in-content-box-background) !important;
+      --panel-color: var(--in-content-text-color) !important;
+      --panel-padding: 0 !important;
+    }
+
+    xul|menulist > xul|menupopup xul|menu,
+    xul|menulist > xul|menupopup xul|menuitem {
+      appearance: none !important;
+      font-size: 1em !important;
+      padding-block: 0.2em !important;
+      padding-inline: 10px 30px !important;
+    }
+
+    xul|menulist > xul|menupopup > xul|menu:not([disabled="true"])[_moz-menuactive="true"],
+    xul|menulist > xul|menupopup > xul|menuitem:not([disabled="true"])[_moz-menuactive="true"] {
+      color: var(--in-content-item-hover-text) !important;
+      background-color: var(--in-content-item-hover) !important;
+    }
+
+    xul|menulist > xul|menupopup > xul|menu:not([disabled="true"])[selected="true"],
+    xul|menulist > xul|menupopup > xul|menuitem:not([disabled="true"])[selected="true"] {
+      color: var(--in-content-item-selected-text) !important;
+      background-color: var(--in-content-item-selected) !important;
+    }
+
+    xul|menulist > xul|menupopup > xul|menu[disabled="true"],
+    xul|menulist > xul|menupopup > xul|menuitem[disabled="true"] {
+      color: #999 !important;
+      /* override the [_moz-menuactive="true"] background color from
+         global/menu.css */
+      background-color: transparent !important;
+    }
+
+    xul|menulist > xul|menupopup xul|menuseparator {
+      appearance: none !important;
+      margin: 0 !important;
+      padding: 0 !important;
+      border-top: 1px solid var(--in-content-box-border-color) !important;
+      border-bottom: none !important;
+    }
+
+    xul|menulist::part(dropmarker) {
+      margin-block: 1px !important;
+    }
+
+    /* Override menulist.css */
+    xul|menulist[disabled="true"] {
+      background-color: var(--in-content-button-background) !important;
+    }
+
+    xul|menulist:-moz-focusring > xul|*.menulist-label-box {
+      outline: none !important;
+    }
+
+    /*- Each OS --------------------------------------------------------------*/
+    @media (-moz-os-version: windows-win7), (-moz-os-version: windows-win8), (-moz-os-version: windows-win10) {
+      xul|checkbox,
+      xul|radio {
+        padding-inline-start: 0 !important;
+      }
+
+      /* Override menulist.css */
+      xul|menulist[disabled="true"] {
+        background-color: var(--in-content-button-background) !important;
+      }
+
+      xul|menulist:-moz-focusring > xul|*.menulist-label-box {
+        outline: none !important;
+      }
+    }
+
+    @media (-moz-gtk-csd-available) {
+      /* Overriding appearance also avoids incorrect selection background color with light text. */
+      xul|button > xul|*.button-box,
+      xul|menulist::part(label-box),
+      xul|*.radio-label-box,
+      xul|*.checkbox-label-box {
+        appearance: none !important;
+      }
+
+      xul|button[type="menu"] > xul|*.button-box > xul|*.button-menu-dropmarker {
+        appearance: none !important;
+      }
+      xul|menulist {
+        font-size: inherit !important;
+      }
+      xul|menulist::part(dropmarker) {
+        display: -moz-box;
+        margin-block: 6px !important;
+      }
+      xul|menulist:-moz-focusring::part(label-box) {
+        outline: none !important;
+      }
+    }
+
+    @supports -moz-bool-pref("layout.css.osx-font-smoothing.enabled") {
+      xul|menulist > xul|menupopup > xul|menuitem[checked="true"]::before,
+      xul|menulist > xul|menupopup > xul|menuitem[selected="true"]::before {
+        display: none !important;
+      }
+
+      xul|menulist::part(dropmarker) {
+        display: -moz-box !important;
+        margin-block: 1px !important;
+      }
+
+      xul|menulist > xul|menupopup xul|menu,
+      xul|menulist > xul|menupopup xul|menuitem {
+        padding-inline-end: 34px !important;
+      }
+
+      xul|*.checkbox-icon,
+      xul|*.radio-icon {
+        margin-inline-end: 0 !important;
+      }
+
+      xul|*.text-link:-moz-focusring {
+        box-shadow: none !important;
+      }
     }
   }