diff --git a/waterfox/browser/themes/lepton/icons/radio.svg b/waterfox/browser/themes/lepton/icons/radio.svg
new file mode 100644
index 000000000000..21ec9fd44a4a
--- /dev/null
+++ b/waterfox/browser/themes/lepton/icons/radio.svg
@@ -0,0 +1,6 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="context-fill" fill-opacity="context-fill-opacity">
+  <circle cx="8" cy="8" r="4"/>
+</svg>
diff --git a/waterfox/browser/themes/lepton/leptonChrome.css b/waterfox/browser/themes/lepton/leptonChrome.css
index 3f886e097255..0dff4dc9ffb0 100644
--- a/waterfox/browser/themes/lepton/leptonChrome.css
+++ b/waterfox/browser/themes/lepton/leptonChrome.css
@@ -2516,7 +2516,7 @@
       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;
+      background-image: url("chrome://browser/skin/lepton/radio.svg") !important;
       border-color: transparent !important;
       /* Style the button also when printing with "Print Backgrounds" unchecked */
       color-adjust: exact !important;
@@ -3716,12 +3716,18 @@
       transition: all 0.3s var(--animation-easing-function) !important;
     }
     /*- URL / Search Bar -------------------------------------------------------*/
-    #urlbar-background,
+    #urlbar-background {
+      transition: border-color 1s var(--animation-easing-function),
+        background-color 0.5s var(--animation-easing-function) !important;
+    }
+    #urlbar-background:hover {
+      transition: border-color 0.5s var(--animation-easing-function),
+        background-color 0.5s var(--animation-easing-function) !important;
+    }
     #searchbar {
       transition: border-color 1s var(--animation-easing-function),
         background-color 1.5s var(--animation-easing-function) !important;
     }
-    #urlbar-background:hover,
     #searchbar:hover {
       transition: border-color 0.5s var(--animation-easing-function),
         background-color 1s var(--animation-easing-function) !important;
@@ -4409,11 +4415,6 @@
     :root:not([uidensity="compact"]) #urlbar[breakout][breakout-extend-disabled][open] {
       height: auto !important;
     }
-    :root[uidensity="touch"] #urlbar[breakout] {
-      top: calc(
-        (var(--urlbar-toolbar-height, var(--urlbar-container-height)) - var(--urlbar-height)) / 2 + 1px
-      ) !important;
-    }
     /* spread menu */
     :root:not([uidensity]) .urlbarView-row {
       padding-block: 1px !important; /* Original: 2px */
@@ -6806,6 +6807,9 @@
 /** Tab UI ********************************************************************/
 /*= Tab - Connect to window ==============================================*/
 @supports -moz-bool-pref("userChrome.tab.connect_to_window") {
+  #tabbrowser-tabs[orient="horizontal"] {
+    min-height: unset !important; /* Original: var(--tabstrip-min-height) */
+  }
   #tabbrowser-tabs[orient="vertical"] {
     --uc-tab-border-bottom-radius: var(--tab-border-radius);
   }
@@ -7485,7 +7489,8 @@
       display: -moz-inline-box !important;
       height: 1px !important;
       border-radius: 9999px !important;
-      margin-top: 3px;
+      transform: translateY(5px);
+      margin-top: -1px !important;
       margin-left: 5px;
       margin-right: 5px;
     }
@@ -7525,7 +7530,6 @@
     .tabbrowser-tab:hover:not([selected="true"], [multiselected]) > .tab-stack > .tab-background > .tab-context-line {
       background-color: rgba(0, 0, 0, 0.2) !important;
       opacity: 1 !important;
-      transform: none !important;
     }
     #TabsToolbar[brighttext]
       .tabbrowser-tab:hover:not([selected="true"], [multiselected])
@@ -8346,7 +8350,7 @@
   .tab-icon-overlay:not([crashed])[muted] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  .tab-icon-overlay:not([crashed])[soundplaying] {
+  .tab-icon-overlay:not([crashed])[activemedia-blocked] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
   .tab-icon-overlay:not([sharing], [crashed]):is([soundplaying], [muted], [activemedia-blocked]) {
@@ -9121,7 +9125,7 @@
 @supports -moz-bool-pref("userChrome.sidebar.overlap") or -moz-bool-pref("userChrome.autohide.sidebar") {
   #sidebar-box {
     --uc-sidebar-shadow-color: #28282f;
-    z-index: 1 !important;
+    z-index: var(--browser-area-z-index-sidebar-splitter, 3) !important;
     position: relative !important;
     box-shadow: var(--uc-sidebar-shadow-position) 0px 15px -10px var(--uc-sidebar-shadow-color);
   }
@@ -9849,19 +9853,27 @@
 /** Fullscreen - Overlap toolbar **********************************************/
 @supports -moz-bool-pref("userChrome.fullscreen.overlap") {
   @supports -moz-bool-pref("browser.fullscreen.autohide") {
-    :root[sizemode="fullscreen"] #navigator-toolbox {
+    :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #navigator-toolbox {
       position: fixed !important; /* Needed for content to take up entire height */
       z-index: 1000 !important; /* Puts the UI above the content */
     }
-    :root[sizemode="fullscreen"] #navigator-toolbox:is(:hover, :focus-within) {
+    :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #navigator-toolbox:is(:hover, :focus-within) {
       margin-top: 0 !important;
     }
-    :root[sizemode="fullscreen"] :-moz-any(#navigator-toolbox, #titlebar, #nav-bar, #PersonalToolbar) {
+    :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"])
+      :-moz-any(#navigator-toolbox, #titlebar, #nav-bar, #PersonalToolbar) {
       width: 100%; /* Makes the UI take up the entire width */
     }
+    :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #urlbar:popover-open {
+      position: fixed !important;
+    }
     @media (-moz-gtk-csd-available) {
       /* Fix transparent background */
-      :root[tabsintitlebar][sizemode="fullscreen"]:is(:not([lwtheme]), :not(:-moz-lwtheme)) #TabsToolbar {
+      :root[tabsintitlebar][sizemode="fullscreen"]:not([inDOMFullscreen="true"]):is(
+          :not([lwtheme]),
+          :not(:-moz-lwtheme)
+        )
+        #TabsToolbar {
         appearance: auto !important;
       }
     }
@@ -10459,11 +10471,17 @@
       @supports not -moz-bool-pref("userChrome.tabbar.one_liner") {
         #nav-bar:not([customizing]) {
           margin-bottom: var(--uc-navbar-hide-height);
+        }
+        #nav-bar:not([customizing]),
+        #nav-bar:not([customizing]) #urlbar {
           opacity: 0;
           will-change: margin-bottom, opacity;
         }
         #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
           margin-bottom: 0;
+        }
+        #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+        #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
           opacity: 1;
         }
       }
@@ -10472,11 +10490,17 @@
           @media screen and (max-width: 1100px) {
             #nav-bar:not([customizing]) {
               margin-bottom: var(--uc-navbar-hide-height);
+            }
+            #nav-bar:not([customizing]),
+            #nav-bar:not([customizing]) #urlbar {
               opacity: 0;
               will-change: margin-bottom, opacity;
             }
             #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
               margin-bottom: 0;
+            }
+            #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+            #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
               opacity: 1;
             }
           }
@@ -10500,7 +10524,12 @@
             var(--ext-theme-background-transition) !important;
         }
       }
-      #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
+      #nav-bar:not([customizing]) #urlbar {
+        transition: opacity var(--uc-autohide-toolbar-speed) var(--animation-easing-function)
+          var(--uc-autohide-toolbar-delay) !important;
+      }
+      #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+      #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
         transition-delay: 0s !important;
       }
     }
@@ -11649,6 +11678,9 @@
     #allTabsMenu-searchTabs {
       list-style-image: url("chrome://global/skin/icons/search-glass.svg");
     }
+    #allTabsMenu-syncedTabs {
+      list-style-image: url("chrome://browser/skin/lepton/synced-tabs.svg");
+    }
     #allTabsMenu-closeDuplicateTabs {
       list-style-image: var(--uc-tab-close-duplicate-icon);
     }
@@ -11766,6 +11798,22 @@
     #sidebarMenu-popup > *:is(menuitem)[data-l10n-id="sidebar-menu-close"] {
       --menuitem-image: url("chrome://global/skin/icons/close.svg");
     }
+    /*= chrome://browser/content/syncedtabs/sidebar.xhtml ========================*/
+    .item.client[clientType="phone"] > .item-title-container > .item-icon-container {
+      background-image: url("chrome://browser/skin/lepton/device-phone.svg") !important;
+    }
+    .item.client[clientType="tablet"] > .item-title-container > .item-icon-container {
+      background-image: url("chrome://browser/skin/lepton/device-tablet.svg") !important;
+    }
+    .item.client[clientType="desktop"] > .item-title-container > .item-icon-container {
+      background-image: url("chrome://browser/skin/lepton/device-desktop.svg") !important;
+    }
+    .item.client[clientType="tv"] > .item-title-container > .item-icon-container {
+      background-image: url("chrome://browser/skin/lepton/device-tv.svg") !important;
+    }
+    .item.client[clientType="vr"] > .item-title-container > .item-icon-container {
+      background-image: url("chrome://browser/skin/lepton/device-vr.svg") !important;
+    }
     /*= unified-extensions-view ===================================================*/
     #unified-extensions-manage-extensions {
       list-style-image: url("chrome://mozapps/skin/extensions/extension.svg");
@@ -16428,7 +16476,7 @@
       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;
+      background-image: url("chrome://browser/skin/lepton/radio.svg") !important;
       border-color: transparent !important;
       /* Style the button also when printing with "Print Backgrounds" unchecked */
       color-adjust: exact !important;
@@ -17720,11 +17768,18 @@
   }
 }
 @media (prefers-reduced-motion: no-preference) and (-moz-bool-pref: "userChrome.decoration.animate") {
-  #urlbar-background,
+  #urlbar-background {
+    transition: border-color 1s var(--animation-easing-function), background-color 0.5s var(--animation-easing-function) !important;
+  }
+  #urlbar-background:hover {
+    transition: border-color 0.5s var(--animation-easing-function),
+      background-color 0.5s var(--animation-easing-function) !important;
+  }
+}
+@media (prefers-reduced-motion: no-preference) and (-moz-bool-pref: "userChrome.decoration.animate") {
   #searchbar {
     transition: border-color 1s var(--animation-easing-function), background-color 1.5s var(--animation-easing-function) !important;
   }
-  #urlbar-background:hover,
   #searchbar:hover {
     transition: border-color 0.5s var(--animation-easing-function), background-color 1s var(--animation-easing-function) !important;
   }
@@ -18442,11 +18497,6 @@
   :root:not([uidensity="compact"]) #urlbar[breakout][breakout-extend-disabled][open] {
     height: auto !important;
   }
-  :root[uidensity="touch"] #urlbar[breakout] {
-    top: calc(
-      (var(--urlbar-toolbar-height, var(--urlbar-container-height)) - var(--urlbar-height)) / 2 + 1px
-    ) !important;
-  }
   /* spread menu */
   :root:not([uidensity]) .urlbarView-row {
     padding-block: 1px !important; /* Original: 2px */
@@ -21255,6 +21305,9 @@
 /** Tab UI ********************************************************************/
 /*= Tab - Connect to window ==============================================*/
 @media (-moz-bool-pref: "userChrome.tab.connect_to_window") {
+  #tabbrowser-tabs[orient="horizontal"] {
+    min-height: unset !important; /* Original: var(--tabstrip-min-height) */
+  }
   #tabbrowser-tabs[orient="vertical"] {
     --uc-tab-border-bottom-radius: var(--tab-border-radius);
   }
@@ -22056,7 +22109,8 @@
     display: -moz-inline-box !important;
     height: 1px !important;
     border-radius: 9999px !important;
-    margin-top: 3px;
+    transform: translateY(5px);
+    margin-top: -1px !important;
     margin-left: 5px;
     margin-right: 5px;
   }
@@ -22096,7 +22150,6 @@
   .tabbrowser-tab:hover:not([selected="true"], [multiselected]) > .tab-stack > .tab-background > .tab-context-line {
     background-color: rgba(0, 0, 0, 0.2) !important;
     opacity: 1 !important;
-    transform: none !important;
   }
   #TabsToolbar[brighttext]
     .tabbrowser-tab:hover:not([selected="true"], [multiselected])
@@ -22955,7 +23008,7 @@
   .tab-icon-overlay:not([crashed])[muted] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-muted-small.svg");
   }
-  .tab-icon-overlay:not([crashed])[soundplaying] {
+  .tab-icon-overlay:not([crashed])[activemedia-blocked] {
     list-style-image: url("chrome://browser/skin/tabbrowser/tab-audio-blocked-small.svg");
   }
 }
@@ -23779,7 +23832,7 @@
 @media (-moz-bool-pref: "userChrome.sidebar.overlap"), (-moz-bool-pref: "userChrome.autohide.sidebar") {
   #sidebar-box {
     --uc-sidebar-shadow-color: #28282f;
-    z-index: 1 !important;
+    z-index: var(--browser-area-z-index-sidebar-splitter, 3) !important;
     position: relative !important;
     box-shadow: var(--uc-sidebar-shadow-position) 0px 15px -10px var(--uc-sidebar-shadow-color);
   }
@@ -24567,20 +24620,25 @@
 }
 /** Fullscreen - Overlap toolbar **********************************************/
 @media (-moz-bool-pref: "userChrome.fullscreen.overlap") and (-moz-bool-pref: "browser.fullscreen.autohide") {
-  :root[sizemode="fullscreen"] #navigator-toolbox {
+  :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #navigator-toolbox {
     position: fixed !important; /* Needed for content to take up entire height */
     z-index: 1000 !important; /* Puts the UI above the content */
   }
-  :root[sizemode="fullscreen"] #navigator-toolbox:is(:hover, :focus-within) {
+  :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #navigator-toolbox:is(:hover, :focus-within) {
     margin-top: 0 !important;
   }
-  :root[sizemode="fullscreen"] :-moz-any(#navigator-toolbox, #titlebar, #nav-bar, #PersonalToolbar) {
+  :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"])
+    :-moz-any(#navigator-toolbox, #titlebar, #nav-bar, #PersonalToolbar) {
     width: 100%; /* Makes the UI take up the entire width */
   }
+  :root[sizemode="fullscreen"]:not([inDOMFullscreen="true"]) #urlbar:popover-open {
+    position: fixed !important;
+  }
 }
 @media (-moz-bool-pref: "userChrome.fullscreen.overlap") and (-moz-bool-pref: "browser.fullscreen.autohide") and (-moz-gtk-csd-available) {
   /* Fix transparent background */
-  :root[tabsintitlebar][sizemode="fullscreen"]:is(:not([lwtheme]), :not(:-moz-lwtheme)) #TabsToolbar {
+  :root[tabsintitlebar][sizemode="fullscreen"]:not([inDOMFullscreen="true"]):is(:not([lwtheme]), :not(:-moz-lwtheme))
+    #TabsToolbar {
     appearance: auto !important;
   }
 }
@@ -25383,11 +25441,17 @@
   (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (-moz-bool-pref: "userChrome.autohide.navbar") and (not (-moz-bool-pref: "userChrome.tabbar.one_liner")) {
   #nav-bar:not([customizing]) {
     margin-bottom: var(--uc-navbar-hide-height);
+  }
+  #nav-bar:not([customizing]),
+  #nav-bar:not([customizing]) #urlbar {
     opacity: 0;
     will-change: margin-bottom, opacity;
   }
   #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
     margin-bottom: 0;
+  }
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
     opacity: 1;
   }
 }
@@ -25397,11 +25461,17 @@
   screen and (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (-moz-bool-pref: "userChrome.tabbar.one_liner.responsive") and (max-width: 1100px) {
   #nav-bar:not([customizing]) {
     margin-bottom: var(--uc-navbar-hide-height);
+  }
+  #nav-bar:not([customizing]),
+  #nav-bar:not([customizing]) #urlbar {
     opacity: 0;
     will-change: margin-bottom, opacity;
   }
   #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
     margin-bottom: 0;
+  }
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
     opacity: 1;
   }
 }
@@ -25432,7 +25502,17 @@
   (-moz-bool-pref: "userChrome.autohide.tabbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (prefers-reduced-motion: no-preference),
   (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.autohide.navbar") and (prefers-reduced-motion: no-preference),
   (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (prefers-reduced-motion: no-preference) {
-  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) {
+  #nav-bar:not([customizing]) #urlbar {
+    transition: opacity var(--uc-autohide-toolbar-speed) var(--animation-easing-function)
+      var(--uc-autohide-toolbar-delay) !important;
+  }
+}
+@media (-moz-bool-pref: "userChrome.autohide.tabbar") and (-moz-bool-pref: "userChrome.autohide.navbar") and (prefers-reduced-motion: no-preference),
+  (-moz-bool-pref: "userChrome.autohide.tabbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (prefers-reduced-motion: no-preference),
+  (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.autohide.navbar") and (prefers-reduced-motion: no-preference),
+  (-moz-bool-pref: "userChrome.autohide.navbar") and (-moz-bool-pref: "userChrome.tabbar.one_liner") and (prefers-reduced-motion: no-preference) {
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]),
+  #navigator-toolbox:is(:hover, :focus-within) #nav-bar:not([customizing]) #urlbar {
     transition-delay: 0s !important;
   }
 }
@@ -26073,6 +26153,7 @@
   /*= protections-popup ========================================================*/
   /*= identity-popup ===========================================================*/
   /*= sidebarMenu-popup ========================================================*/
+  /*= chrome://browser/content/syncedtabs/sidebar.xhtml ========================*/
   /*= unified-extensions-view ===================================================*/
   /*= Compatibility ============================================================*/
   /*= Tab Mix Plus =============================================================*/
@@ -26775,6 +26856,11 @@
     list-style-image: url("chrome://global/skin/icons/search-glass.svg");
   }
 }
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  #allTabsMenu-syncedTabs {
+    list-style-image: url("chrome://browser/skin/lepton/synced-tabs.svg");
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
   #allTabsMenu-closeDuplicateTabs {
     list-style-image: var(--uc-tab-close-duplicate-icon);
@@ -26933,6 +27019,31 @@
     --menuitem-image: url("chrome://global/skin/icons/close.svg");
   }
 }
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  .item.client[clientType="phone"] > .item-title-container > .item-icon-container {
+    background-image: url("chrome://browser/skin/lepton/device-phone.svg") !important;
+  }
+}
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  .item.client[clientType="tablet"] > .item-title-container > .item-icon-container {
+    background-image: url("chrome://browser/skin/lepton/device-tablet.svg") !important;
+  }
+}
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  .item.client[clientType="desktop"] > .item-title-container > .item-icon-container {
+    background-image: url("chrome://browser/skin/lepton/device-desktop.svg") !important;
+  }
+}
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  .item.client[clientType="tv"] > .item-title-container > .item-icon-container {
+    background-image: url("chrome://browser/skin/lepton/device-tv.svg") !important;
+  }
+}
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  .item.client[clientType="vr"] > .item-title-container > .item-icon-container {
+    background-image: url("chrome://browser/skin/lepton/device-vr.svg") !important;
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
   #unified-extensions-manage-extensions {
     list-style-image: url("chrome://mozapps/skin/extensions/extension.svg");
diff --git a/waterfox/browser/themes/lepton/leptonContent.css b/waterfox/browser/themes/lepton/leptonContent.css
index 2cc3d04a3319..e804a859f989 100644
--- a/waterfox/browser/themes/lepton/leptonContent.css
+++ b/waterfox/browser/themes/lepton/leptonContent.css
@@ -2877,7 +2877,7 @@
           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;
+          background-image: url("chrome://browser/skin/lepton/radio.svg") !important;
           border-color: transparent !important;
           /* Style the button also when printing with "Print Backgrounds" unchecked */
           color-adjust: exact !important;
@@ -6702,7 +6702,7 @@
         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;
+        background-image: url("chrome://browser/skin/lepton/radio.svg") !important;
         border-color: transparent !important;
         /* Style the button also when printing with "Print Backgrounds" unchecked */
         color-adjust: exact !important;