diff --git a/CREDITS b/CREDITS
index 3c6219af..54dbb011 100644
--- a/CREDITS
+++ b/CREDITS
@@ -28,9 +28,18 @@ W: https://github.com/zapSNH
 ----------
     Sponsors
 
+N: Private sponsors - 3
+
 N: Alessandro Rubino
 W: https://github.com/Babbiorsetto
 
+N: Alex Besogonov
+E: Alex.Besogonov@gmail.com
+W: https://github.com/Cyberax
+
+N: AuRiMaS666
+W: https://github.com/AuRiMaS666
+
 N: Jani Haiko
 E: haiko.jani@gmail.com
 W: https://github.com/ojaha065
@@ -42,6 +51,9 @@ W: https://github.com/DPS0340
 N: kanlukasz
 W: https://github.com/kanlukasz
 
+N: Mike-Kennelly
+W: https://github.com/Mike-Kennelly
+
 N: nikkehtine
 E: nikkehtine@int.pl
 W: https://github.com/nikkehtine
@@ -49,6 +61,8 @@ W: https://github.com/nikkehtine
 N: OSS.kr
 W: https://www.oss.kr/
 
+N: Safira
+
 N: ZachKnife1
 W: https://github.com/ZachKnife1
 
diff --git a/README.org b/README.org
index d964368a..10a441d7 100644
--- a/README.org
+++ b/README.org
@@ -37,8 +37,8 @@ You [[https://github.com/black7375/Firefox-UI-Fix/wiki/Compatibility-Issues-Solu
 -----
 
 ** Introduction
-  [[https://wiki.mozilla.org/Firefox/Proton][Proton]] is Firefox's new design, starting from Firefox 89. \\
-  [[https://design.firefox.com/photon/][Photon]] is the old design of Firefox which was used until version 88.
+  [[https://wiki.mozilla.org/Firefox/Proton][Proton]] is Firefox's [[https://acorn.firefox.com/][new design]], starting from Firefox 89. \\
+  [[https://firefoxux.github.io/photon/][Photon]] is the old design of Firefox which was used until version 88.
 
   Proton's [[#why-proton][overall feel is good]], but there were a few things I [[#why-not-proton][didn't like]] and wanted to improve. \\
   That's why this project was born, and Lepton to denote light theme layer.
@@ -198,6 +198,12 @@ Thanks to all sponsors & contributors to this project for providing help and dev
 [[https://github.com/kanlukasz][@@html:<img src="https://avatars.githubusercontent.com/u/30685349?s=60&v=4"/>@@]]
 [[https://github.com/nikkehtine][@@html:<img src="https://avatars.githubusercontent.com/u/27138416?s=60&v=4"/>@@]]
 [[https://github.com/Babbiorsetto][@@html:<img src="https://avatars.githubusercontent.com/u/36596647?s=60&v=4"/>@@]]
+[[https://github.com/Mike-Kennelly][@@html:<img src="https://avatars.githubusercontent.com/u/151653777?s=60&v=4"/>@@]]
+[[https://github.com/Cyberax][@@html:<img width="60" height="60" src="https://avatars.githubusercontent.com/u/1136550?s=60&v=4"/>@@]]
+[[https://github.com/AuRiMaS666][@@html:<img width="60" height="60" src="https://avatars.githubusercontent.com/u/59185222?s=60&v=4"/>@@]]
+
+- A donation was received from Safira on [[https://ko-fi.com/home/coffeeshop?txid=97e5fa0d-c73e-4308-a2fd-6b44b08cd828][Ko-Fi]]
+- Private sponsors: 3
 
 *Contributors*
 
diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 14b3ccba..768ace0a 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -1945,7 +1945,7 @@
     --input-color: var(--arrowpanel-color, FieldText);
   }
   /*== Sidebar - Field Color ===================================================*/
-  html[lwt-sidebar] body {
+  html[lwt-sidebar]:not(#main-window) body {
     background-color: var(--lwt-sidebar-background-color, Field) !important;
     color: var(--lwt-sidebar-text-color, FieldText) !important;
   }
@@ -6694,6 +6694,10 @@
     --tab-selected-bgcolor: unset !important; /* Original: rgb(255,255,255); */
     --tab-selected-bgimage: unset !important; /* Above FF v101 */
   }
+  #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon,
+  .tab-background:is([selected], [multiselected]) {
+    background-color: var(--tab-selected-bgcolor, var(--toolbar-bgcolor)) !important;
+  }
   #tabbrowser-tabs:not([movingtab])
     > #tabbrowser-arrowscrollbox
     > .tabbrowser-tab
@@ -7189,18 +7193,21 @@
 @supports -moz-bool-pref("userChrome.tab.photon_like_contextline") or -moz-bool-pref("userChrome.tab.static_separator") or -moz-bool-pref(
     "userChrome.tab.bar_separator"
   ) {
-  :root[lwtheme-mozlightdark] #tabbrowser-tabs,
-  :root[style*="--lwt-accent-color: rgb(240, 240, 244); --lwt-text-color: rgba(21, 20, 26);"],
-  :root[style*="--lwt-accent-color: rgb(28, 27, 34); --lwt-text-color: rgba(251, 251, 254);"] {
-    --tab-line-color: rgb(10, 132, 255) !important;
-  }
-  @media (-moz-gtk-csd-available) {
-    :root:not(:-moz-lwtheme) #tabbrowser-tabs {
-      --tab-line-color: AccentColor !important; /* -moz-accent-color */
+  @supports -moz-bool-pref("userChrome.tab.blue_accent") {
+    :root,
+    #tabbrowser-tabs {
+      --tab-line-color: rgb(10, 132, 255) !important;
     }
-    @supports -moz-bool-pref("userChrome.compatibility.accent_color") {
+  }
+  @supports not -moz-bool-pref("userChrome.tab.blue_accent") {
+    @media (-moz-gtk-csd-available) {
       :root:not(:-moz-lwtheme) #tabbrowser-tabs {
-        --tab-line-color: Highlight !important; /* -moz-accent-color */
+        --tab-line-color: AccentColor !important; /* -moz-accent-color */
+      }
+      @supports -moz-bool-pref("userChrome.compatibility.accent_color") {
+        :root:not(:-moz-lwtheme) #tabbrowser-tabs {
+          --tab-line-color: Highlight !important; /* -moz-accent-color */
+        }
       }
     }
   }
@@ -8471,6 +8478,7 @@
     --uc-multirow-bookmark-rows: 3;
     --uc-multirow-bookmark-row-margin: 2px;
     max-height: none !important;
+    height: unset !important;
   }
   #PlacesToolbar > hbox {
     display: block;
@@ -8484,7 +8492,7 @@
     max-height: calc(
       var(--uc-multirow-bookmark-rows) *
         (
-          var(--uc-bm-height, calc(20px + 2 * var(--bookmark-block-padding, 4px))) + 2 *
+          var(--uc-bm-height, calc(20px + var(--bookmark-block-padding, 4px))) + 2 *
             var(--uc-multirow-bookmark-row-margin)
         )
     ) !important;
@@ -11196,6 +11204,7 @@
     #appMenu_troubleShooting {
       list-style-image: url("chrome://global/skin/icons/more.svg");
     }
+    #appMenu-report-broken-site-button,
     #appMenu_help_reportSiteIssue {
       list-style-image: url("chrome://global/skin/icons/lightbulb.svg");
     }
@@ -11596,6 +11605,9 @@
         padding-inline-start: var(--menu-background-padding-default) !important;
         margin-left: 0 !important;
       }
+      .menupopup-arrowscrollbox {
+        padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+      }
     }
     @media (-moz-platform: windows), (-moz-gtk-csd-available) {
       @supports -moz-bool-pref("userChrome.theme.non_native_menu") {
@@ -11661,6 +11673,9 @@
             padding-inline-start: var(--menu-background-padding-default) !important;
             margin-left: 0 !important;
           }
+          .menupopup-arrowscrollbox {
+            padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+          }
         }
       }
     }
@@ -12105,9 +12120,7 @@
       #context-openlinkincurrent {
         --menuitem-image: url("../icons/link-square.svg");
       }
-      #context-openlinkincontainertab {
-        --menuitem-image: var(--uc-new-tab-icon);
-      }
+      #context-openlinkincontainertab,
       #context-openlinkintab {
         --menuitem-image: var(--uc-new-tab-icon);
       }
@@ -12243,30 +12256,40 @@
       #fill-login-generated-password {
         --menuitem-image: url("chrome://browser/skin/login.svg");
       }
+      #use-relay-mask {
+        --menuitem-image: url("../icons/relay-logo.svg");
+      }
       #manage-saved-logins {
         --menuitem-image: url("../icons/key-multiple.svg");
       }
-      #context-undo {
+      #context-undo,
+      #context-pdfjs-undo {
         --menuitem-image: url("../icons/undo.svg");
       }
       @supports -moz-bool-pref("userChrome.icon.menu.full") {
-        #context-redo {
+        #context-redo,
+        #context-pdfjs-redo {
           --menuitem-image: url("../icons/redo.svg");
         }
       }
-      #context-cut {
+      #context-cut,
+      #context-pdfjs-cut {
         --menuitem-image: url("../icons/edit-cut.svg");
       }
-      #context-copy {
+      #context-copy,
+      #context-pdfjs-copy {
         --menuitem-image: url("../icons/edit-copy.svg");
       }
-      #context-paste {
+      #context-paste,
+      #context-pdfjs-paste {
         --menuitem-image: url("../icons/edit-paste.svg");
       }
-      #context-delete {
+      #context-delete,
+      #context-pdfjs-delete {
         --menuitem-image: url("chrome://global/skin/icons/delete.svg");
       }
-      #context-selectall {
+      #context-selectall,
+      #context-pdfjs-selectall {
         --menuitem-image: url("../icons/select-all-on.svg");
       }
       #context-reveal-password {
@@ -13028,6 +13051,9 @@
       #menu_openHelp {
         --menuitem-image: url("chrome://global/skin/icons/help.svg");
       }
+      #help_reportBrokenSite {
+        --menuitem-image: url("chrome://global/skin/icons/lightbulb.svg");
+      }
       #feedbackPage {
         --menuitem-image: url("../icons/send.svg");
       }
@@ -13159,6 +13185,12 @@
     }
   }
   /*= Floorp Browser ===========================================================*/
+  #ssbPageAction-image {
+    list-style-image: url("../icons/pwa-install.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("../icons/pwa-launch.svg");
+  }
   @supports -moz-bool-pref("userChrome.icon.panel") {
     #rebootappmenu {
       list-style-image: url("../icons/refresh-cw.svg");
@@ -13166,6 +13198,15 @@
     #openprofiledir {
       list-style-image: var(--uc-folder-icon);
     }
+    #appMenu-ssb-button {
+      list-style-image: url("../icons/pwa-manage.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button {
+      list-style-image: url("../icons/pwa-install.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+      list-style-image: url("../icons/pwa-launch.svg");
+    }
   }
   @supports -moz-bool-pref("userChrome.icon.menu") {
     #toggle_sharemode {
@@ -13213,6 +13254,12 @@
     #deleteWebpanelMenu {
       --menuitem-image: url("chrome://global/skin/icons/delete.svg");
     }
+    #run-ssb-contextmenu {
+      --menuitem-image: url("../icons/pwa-launch.svg");
+    }
+    #uninstall-ssb-contextmenu {
+      --menuitem-image: url("../icons/pwa-remove.svg");
+    }
   }
 }
 /*@ NIGHTLY @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
@@ -15206,7 +15253,7 @@
   }
 }
 @media (-moz-bool-pref: "userChrome.theme.fully_color") {
-  html[lwt-sidebar] body {
+  html[lwt-sidebar]:not(#main-window) body {
     background-color: var(--lwt-sidebar-background-color, Field) !important;
     color: var(--lwt-sidebar-text-color, FieldText) !important;
   }
@@ -20505,6 +20552,10 @@
     --tab-selected-bgcolor: unset !important; /* Original: rgb(255,255,255); */
     --tab-selected-bgimage: unset !important; /* Above FF v101 */
   }
+  #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon,
+  .tab-background:is([selected], [multiselected]) {
+    background-color: var(--tab-selected-bgcolor, var(--toolbar-bgcolor)) !important;
+  }
   #tabbrowser-tabs:not([movingtab])
     > #tabbrowser-arrowscrollbox
     > .tabbrowser-tab
@@ -21110,25 +21161,24 @@
   }
 }
 /*= Selected Tab - Photon like contextline ===================================*/
-@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline"),
-  (-moz-bool-pref: "userChrome.tab.static_separator"),
-  (-moz-bool-pref: "userChrome.tab.bar_separator") {
-  :root[lwtheme-mozlightdark] #tabbrowser-tabs,
-  :root[style*="--lwt-accent-color: rgb(240, 240, 244); --lwt-text-color: rgba(21, 20, 26);"],
-  :root[style*="--lwt-accent-color: rgb(28, 27, 34); --lwt-text-color: rgba(251, 251, 254);"] {
+@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline") and (-moz-bool-pref: "userChrome.tab.blue_accent"),
+  (-moz-bool-pref: "userChrome.tab.static_separator") and (-moz-bool-pref: "userChrome.tab.blue_accent"),
+  (-moz-bool-pref: "userChrome.tab.bar_separator") and (-moz-bool-pref: "userChrome.tab.blue_accent") {
+  :root,
+  #tabbrowser-tabs {
     --tab-line-color: rgb(10, 132, 255) !important;
   }
 }
-@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline") and (-moz-gtk-csd-available),
-  (-moz-bool-pref: "userChrome.tab.static_separator") and (-moz-gtk-csd-available),
-  (-moz-bool-pref: "userChrome.tab.bar_separator") and (-moz-gtk-csd-available) {
+@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available),
+  (-moz-bool-pref: "userChrome.tab.static_separator") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available),
+  (-moz-bool-pref: "userChrome.tab.bar_separator") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available) {
   :root:not(:-moz-lwtheme) #tabbrowser-tabs {
     --tab-line-color: AccentColor !important; /* -moz-accent-color */
   }
 }
-@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline") and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color"),
-  (-moz-bool-pref: "userChrome.tab.static_separator") and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color"),
-  (-moz-bool-pref: "userChrome.tab.bar_separator") and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color") {
+@media (-moz-bool-pref: "userChrome.tab.photon_like_contextline") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color"),
+  (-moz-bool-pref: "userChrome.tab.static_separator") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color"),
+  (-moz-bool-pref: "userChrome.tab.bar_separator") and (not (-moz-bool-pref: "userChrome.tab.blue_accent")) and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.compatibility.accent_color") {
   :root:not(:-moz-lwtheme) #tabbrowser-tabs {
     --tab-line-color: Highlight !important; /* -moz-accent-color */
   }
@@ -22468,6 +22518,7 @@
     --uc-multirow-bookmark-rows: 3;
     --uc-multirow-bookmark-row-margin: 2px;
     max-height: none !important;
+    height: unset !important;
   }
   #PlacesToolbar > hbox {
     display: block;
@@ -22481,7 +22532,7 @@
     max-height: calc(
       var(--uc-multirow-bookmark-rows) *
         (
-          var(--uc-bm-height, calc(20px + 2 * var(--bookmark-block-padding, 4px))) + 2 *
+          var(--uc-bm-height, calc(20px + var(--bookmark-block-padding, 4px))) + 2 *
             var(--uc-multirow-bookmark-row-margin)
         )
     ) !important;
@@ -25655,6 +25706,7 @@
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
+  #appMenu-report-broken-site-button,
   #appMenu_help_reportSiteIssue {
     list-style-image: url("chrome://global/skin/icons/lightbulb.svg");
   }
@@ -26128,6 +26180,9 @@
     padding-inline-start: var(--menu-background-padding-default) !important;
     margin-left: 0 !important;
   }
+  .menupopup-arrowscrollbox {
+    padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+  }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-platform: windows) and (-moz-bool-pref: "userChrome.theme.non_native_menu") and (-moz-gtk-csd-available),
   (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-gtk-csd-available) and (-moz-bool-pref: "userChrome.theme.non_native_menu") and (-moz-gtk-csd-available) {
@@ -26188,6 +26243,9 @@
     padding-inline-start: var(--menu-background-padding-default) !important;
     margin-left: 0 !important;
   }
+  .menupopup-arrowscrollbox {
+    padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+  }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-platform: windows) {
   :root {
@@ -26714,11 +26772,7 @@
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-openlinkincontainertab {
-    --menuitem-image: var(--uc-new-tab-icon);
-  }
-}
-@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
+  #context-openlinkincontainertab,
   #context-openlinkintab {
     --menuitem-image: var(--uc-new-tab-icon);
   }
@@ -26939,43 +26993,55 @@
     --menuitem-image: url("chrome://browser/skin/login.svg");
   }
 }
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
+  #use-relay-mask {
+    --menuitem-image: url("../icons/relay-logo.svg");
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
   #manage-saved-logins {
     --menuitem-image: url("../icons/key-multiple.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-undo {
+  #context-undo,
+  #context-pdfjs-undo {
     --menuitem-image: url("../icons/undo.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") and (-moz-bool-pref: "userChrome.icon.menu.full") {
-  #context-redo {
+  #context-redo,
+  #context-pdfjs-redo {
     --menuitem-image: url("../icons/redo.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-cut {
+  #context-cut,
+  #context-pdfjs-cut {
     --menuitem-image: url("../icons/edit-cut.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-copy {
+  #context-copy,
+  #context-pdfjs-copy {
     --menuitem-image: url("../icons/edit-copy.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-paste {
+  #context-paste,
+  #context-pdfjs-paste {
     --menuitem-image: url("../icons/edit-paste.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-delete {
+  #context-delete,
+  #context-pdfjs-delete {
     --menuitem-image: url("chrome://global/skin/icons/delete.svg");
   }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.context_menu") {
-  #context-selectall {
+  #context-selectall,
+  #context-pdfjs-selectall {
     --menuitem-image: url("../icons/select-all-on.svg");
   }
 }
@@ -28080,6 +28146,11 @@
     --menuitem-image: url("chrome://global/skin/icons/help.svg");
   }
 }
+@media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.global_menu") {
+  #help_reportBrokenSite {
+    --menuitem-image: url("chrome://global/skin/icons/lightbulb.svg");
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") and (-moz-bool-pref: "userChrome.icon.global_menu") {
   #feedbackPage {
     --menuitem-image: url("../icons/send.svg");
@@ -28245,6 +28316,14 @@
     --menuitem-image: url("chrome://browser/skin/onion.svg");
   }
 }
+@media not (-moz-bool-pref: "userChrome.icon.disabled") {
+  #ssbPageAction-image {
+    list-style-image: url("../icons/pwa-install.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("../icons/pwa-launch.svg");
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
   #rebootappmenu {
     list-style-image: url("../icons/refresh-cw.svg");
@@ -28252,6 +28331,15 @@
   #openprofiledir {
     list-style-image: var(--uc-folder-icon);
   }
+  #appMenu-ssb-button {
+    list-style-image: url("../icons/pwa-manage.svg");
+  }
+  #appMenu-install-or-open-ssb-current-page-button {
+    list-style-image: url("../icons/pwa-install.svg");
+  }
+  #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+    list-style-image: url("../icons/pwa-launch.svg");
+  }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") {
   #toggle_sharemode {
@@ -28299,4 +28387,10 @@
   #deleteWebpanelMenu {
     --menuitem-image: url("chrome://global/skin/icons/delete.svg");
   }
+  #run-ssb-contextmenu {
+    --menuitem-image: url("../icons/pwa-launch.svg");
+  }
+  #uninstall-ssb-contextmenu {
+    --menuitem-image: url("../icons/pwa-remove.svg");
+  }
 }
diff --git a/css/leptonChromeESR.css b/css/leptonChromeESR.css
index 07fe5ce3..01d509da 100644
--- a/css/leptonChromeESR.css
+++ b/css/leptonChromeESR.css
@@ -2169,7 +2169,7 @@
     --input-color: var(--arrowpanel-color, FieldText);
   }
   /*== Sidebar - Field Color ===================================================*/
-  html[lwt-sidebar] body {
+  html[lwt-sidebar]:not(#main-window) body {
     background-color: var(--lwt-sidebar-background-color, Field) !important;
     color: var(--lwt-sidebar-text-color, FieldText) !important;
   }
@@ -7103,6 +7103,10 @@
     --tab-selected-bgcolor: unset !important; /* Original: rgb(255,255,255); */
     --tab-selected-bgimage: unset !important; /* Above FF v101 */
   }
+  #TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon,
+  .tab-background:is([selected], [multiselected]) {
+    background-color: var(--tab-selected-bgcolor, var(--toolbar-bgcolor)) !important;
+  }
   #tabbrowser-tabs:not([movingtab])
     > #tabbrowser-arrowscrollbox
     > .tabbrowser-tab
@@ -7598,18 +7602,21 @@
 @supports -moz-bool-pref("userChrome.tab.photon_like_contextline") or -moz-bool-pref("userChrome.tab.static_separator") or -moz-bool-pref(
     "userChrome.tab.bar_separator"
   ) {
-  :root[lwtheme-mozlightdark] #tabbrowser-tabs,
-  :root[style*="--lwt-accent-color: rgb(240, 240, 244); --lwt-text-color: rgba(21, 20, 26);"],
-  :root[style*="--lwt-accent-color: rgb(28, 27, 34); --lwt-text-color: rgba(251, 251, 254);"] {
-    --tab-line-color: rgb(10, 132, 255) !important;
-  }
-  @media (-moz-gtk-csd-available) {
-    :root:not(:-moz-lwtheme) #tabbrowser-tabs {
-      --tab-line-color: AccentColor !important; /* -moz-accent-color */
+  @supports -moz-bool-pref("userChrome.tab.blue_accent") {
+    :root,
+    #tabbrowser-tabs {
+      --tab-line-color: rgb(10, 132, 255) !important;
     }
-    @supports -moz-bool-pref("userChrome.compatibility.accent_color") {
+  }
+  @supports not -moz-bool-pref("userChrome.tab.blue_accent") {
+    @media (-moz-gtk-csd-available) {
       :root:not(:-moz-lwtheme) #tabbrowser-tabs {
-        --tab-line-color: Highlight !important; /* -moz-accent-color */
+        --tab-line-color: AccentColor !important; /* -moz-accent-color */
+      }
+      @supports -moz-bool-pref("userChrome.compatibility.accent_color") {
+        :root:not(:-moz-lwtheme) #tabbrowser-tabs {
+          --tab-line-color: Highlight !important; /* -moz-accent-color */
+        }
       }
     }
   }
@@ -8880,6 +8887,7 @@
     --uc-multirow-bookmark-rows: 3;
     --uc-multirow-bookmark-row-margin: 2px;
     max-height: none !important;
+    height: unset !important;
   }
   #PlacesToolbar > hbox {
     display: block;
@@ -8893,7 +8901,7 @@
     max-height: calc(
       var(--uc-multirow-bookmark-rows) *
         (
-          var(--uc-bm-height, calc(20px + 2 * var(--bookmark-block-padding, 4px))) + 2 *
+          var(--uc-bm-height, calc(20px + var(--bookmark-block-padding, 4px))) + 2 *
             var(--uc-multirow-bookmark-row-margin)
         )
     ) !important;
@@ -11613,6 +11621,7 @@
     #appMenu_troubleShooting {
       list-style-image: url("chrome://global/skin/icons/more.svg");
     }
+    #appMenu-report-broken-site-button,
     #appMenu_help_reportSiteIssue {
       list-style-image: url("chrome://global/skin/icons/lightbulb.svg");
     }
@@ -12016,6 +12025,9 @@
         padding-inline-start: var(--menu-background-padding-default) !important;
         margin-left: 0 !important;
       }
+      .menupopup-arrowscrollbox {
+        padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+      }
     }
     @media (-moz-os-version: windows-win7),
       (-moz-os-version: windows-win8),
@@ -12088,6 +12100,9 @@
             padding-inline-start: var(--menu-background-padding-default) !important;
             margin-left: 0 !important;
           }
+          .menupopup-arrowscrollbox {
+            padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+          }
         }
       }
     }
@@ -12714,9 +12729,7 @@
       #context-openlinkincurrent {
         --menuitem-image: url("../icons/link-square.svg");
       }
-      #context-openlinkincontainertab {
-        --menuitem-image: var(--uc-new-tab-icon);
-      }
+      #context-openlinkincontainertab,
       #context-openlinkintab {
         --menuitem-image: var(--uc-new-tab-icon);
       }
@@ -12852,30 +12865,40 @@
       #fill-login-generated-password {
         --menuitem-image: url("chrome://browser/skin/login.svg");
       }
+      #use-relay-mask {
+        --menuitem-image: url("../icons/relay-logo.svg");
+      }
       #manage-saved-logins {
         --menuitem-image: url("../icons/key-multiple.svg");
       }
-      #context-undo {
+      #context-undo,
+      #context-pdfjs-undo {
         --menuitem-image: url("../icons/undo.svg");
       }
       @supports -moz-bool-pref("userChrome.icon.menu.full") {
-        #context-redo {
+        #context-redo,
+        #context-pdfjs-redo {
           --menuitem-image: url("../icons/redo.svg");
         }
       }
-      #context-cut {
+      #context-cut,
+      #context-pdfjs-cut {
         --menuitem-image: url("../icons/edit-cut.svg");
       }
-      #context-copy {
+      #context-copy,
+      #context-pdfjs-copy {
         --menuitem-image: url("../icons/edit-copy.svg");
       }
-      #context-paste {
+      #context-paste,
+      #context-pdfjs-paste {
         --menuitem-image: url("../icons/edit-paste.svg");
       }
-      #context-delete {
+      #context-delete,
+      #context-pdfjs-delete {
         --menuitem-image: url("chrome://global/skin/icons/delete.svg");
       }
-      #context-selectall {
+      #context-selectall,
+      #context-pdfjs-selectall {
         --menuitem-image: url("../icons/select-all-on.svg");
       }
       #context-reveal-password {
@@ -13637,6 +13660,9 @@
       #menu_openHelp {
         --menuitem-image: url("chrome://global/skin/icons/help.svg");
       }
+      #help_reportBrokenSite {
+        --menuitem-image: url("chrome://global/skin/icons/lightbulb.svg");
+      }
       #feedbackPage {
         --menuitem-image: url("../icons/send.svg");
       }
@@ -13768,6 +13794,12 @@
     }
   }
   /*= Floorp Browser ===========================================================*/
+  #ssbPageAction-image {
+    list-style-image: url("../icons/pwa-install.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("../icons/pwa-launch.svg");
+  }
   @supports -moz-bool-pref("userChrome.icon.panel") {
     #rebootappmenu {
       list-style-image: url("../icons/refresh-cw.svg");
@@ -13775,6 +13807,15 @@
     #openprofiledir {
       list-style-image: var(--uc-folder-icon);
     }
+    #appMenu-ssb-button {
+      list-style-image: url("../icons/pwa-manage.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button {
+      list-style-image: url("../icons/pwa-install.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+      list-style-image: url("../icons/pwa-launch.svg");
+    }
   }
   @supports -moz-bool-pref("userChrome.icon.menu") {
     #toggle_sharemode {
@@ -13822,5 +13863,11 @@
     #deleteWebpanelMenu {
       --menuitem-image: url("chrome://global/skin/icons/delete.svg");
     }
+    #run-ssb-contextmenu {
+      --menuitem-image: url("../icons/pwa-launch.svg");
+    }
+    #uninstall-ssb-contextmenu {
+      --menuitem-image: url("../icons/pwa-remove.svg");
+    }
   }
 }
diff --git a/css/leptonContent.css b/css/leptonContent.css
index 62041ecf..d51e2360 100644
--- a/css/leptonContent.css
+++ b/css/leptonContent.css
@@ -1515,6 +1515,7 @@
         background: var(--in-content-page-background) !important;
       }
       /* Text */
+      blockquote,
       .mzp-c-menu-category .mzp-c-menu-title,
       .mzp-c-menu-item .mzp-c-menu-item-link,
       .mzp-c-menu-item .mzp-c-menu-item-link > *,
@@ -1609,6 +1610,9 @@
       .support-callouts > .card.is-inverse :is(h1, h2, h3, h4, h5, h6, li, p) {
         color: var(--in-content-page-color) !important;
       }
+      blockquote {
+        border-color: var(--in-content-border-color) !important;
+      }
       .sumo-button.secondary-button {
         border-color: transparent !important;
       }
@@ -5130,6 +5134,7 @@
       background: var(--in-content-page-background) !important;
     }
     /* Text */
+    blockquote,
     .mzp-c-menu-category .mzp-c-menu-title,
     .mzp-c-menu-item .mzp-c-menu-item-link,
     .mzp-c-menu-item .mzp-c-menu-item-link > *,
@@ -5224,6 +5229,9 @@
     .support-callouts > .card.is-inverse :is(h1, h2, h3, h4, h5, h6, li, p) {
       color: var(--in-content-page-color) !important;
     }
+    blockquote {
+      border-color: var(--in-content-border-color) !important;
+    }
     .sumo-button.secondary-button {
       border-color: transparent !important;
     }
diff --git a/css/leptonContentESR.css b/css/leptonContentESR.css
index c1f079d8..36139795 100644
--- a/css/leptonContentESR.css
+++ b/css/leptonContentESR.css
@@ -1517,6 +1517,7 @@
         background: var(--in-content-page-background) !important;
       }
       /* Text */
+      blockquote,
       .mzp-c-menu-category .mzp-c-menu-title,
       .mzp-c-menu-item .mzp-c-menu-item-link,
       .mzp-c-menu-item .mzp-c-menu-item-link > *,
@@ -1611,6 +1612,9 @@
       .support-callouts > .card.is-inverse :is(h1, h2, h3, h4, h5, h6, li, p) {
         color: var(--in-content-page-color) !important;
       }
+      blockquote {
+        border-color: var(--in-content-border-color) !important;
+      }
       .sumo-button.secondary-button {
         border-color: transparent !important;
       }
diff --git a/icons/pwa-install.svg b/icons/pwa-install.svg
new file mode 100644
index 00000000..37d05c18
--- /dev/null
+++ b/icons/pwa-install.svg
@@ -0,0 +1 @@
+<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"><path  fill-rule="evenodd" d="M3.63 2.255c-.76 0-1.375.616-1.375 1.375v5.74c0 .76.616 1.375 1.375 1.375h8.74c.76 0 1.375-.616 1.375-1.375V9a.625.625 0 1 1 1.25 0v.37a2.625 2.625 0 0 1-2.625 2.625H8.625V14a.625.625 0 1 1-1.25 0v-2.005H3.63A2.625 2.625 0 0 1 1.005 9.37V3.63A2.625 2.625 0 0 1 3.63 1.005H8a.625.625 0 1 1 0 1.25H3.63Z" clip-rule="evenodd"/><path  d="M4 14.375c0-.345.28-.625.625-.625h6.75a.625.625 0 1 1 0 1.25h-6.75A.625.625 0 0 1 4 14.375Z"/><path  fill-rule="evenodd" d="M14.313 4.689a.625.625 0 0 1-.002.884l-2.25 2.24a.625.625 0 0 1-.859.022l-2.49-2.24a.625.625 0 0 1 .836-.93l1.447 1.302V1.63a.625.625 0 1 1 1.25 0v4.236l1.184-1.179a.625.625 0 0 1 .884.002Z" clip-rule="evenodd"/></svg>
\ No newline at end of file
diff --git a/icons/pwa-launch.svg b/icons/pwa-launch.svg
new file mode 100644
index 00000000..e7662e13
--- /dev/null
+++ b/icons/pwa-launch.svg
@@ -0,0 +1 @@
+<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"><path  fill-rule="evenodd" d="M3.63 2.255c-.76 0-1.375.616-1.375 1.375v5.74c0 .76.616 1.375 1.375 1.375h8.74c.76 0 1.375-.616 1.375-1.375V9a.625.625 0 1 1 1.25 0v.37a2.625 2.625 0 0 1-2.625 2.625H8.625V14a.625.625 0 1 1-1.25 0v-2.005H3.63A2.625 2.625 0 0 1 1.005 9.37V3.63A2.625 2.625 0 0 1 3.63 1.005H7a.625.625 0 1 1 0 1.25H3.63Z" clip-rule="evenodd"/><path  d="M4 14.375c0-.345.28-.625.625-.625h6.75a.625.625 0 1 1 0 1.25h-6.75A.625.625 0 0 1 4 14.375Z"/><path  fill-rule="evenodd" d="M9.005 1.63c0-.345.28-.625.625-.625h4.74c.345 0 .625.28.625.625v4.74a.625.625 0 1 1-1.25 0V3.139l-3.673 3.673a.625.625 0 1 1-.884-.884l3.673-3.673H9.63a.625.625 0 0 1-.625-.625Z" clip-rule="evenodd"/></svg>
\ No newline at end of file
diff --git a/icons/pwa-manage.svg b/icons/pwa-manage.svg
new file mode 100644
index 00000000..5bed6199
--- /dev/null
+++ b/icons/pwa-manage.svg
@@ -0,0 +1 @@
+<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"><path  fill-rule="evenodd" d="M3.63 2.255c-.76 0-1.375.616-1.375 1.375v5.74c0 .76.616 1.375 1.375 1.375h8.74c.76 0 1.375-.616 1.375-1.375V3.63c0-.76-.616-1.375-1.375-1.375H3.63ZM1.005 3.63A2.625 2.625 0 0 1 3.63 1.005h8.74a2.625 2.625 0 0 1 2.625 2.625v5.74a2.625 2.625 0 0 1-2.625 2.625H8.625V14a.625.625 0 1 1-1.25 0v-2.005H3.63A2.625 2.625 0 0 1 1.005 9.37V3.63Z" clip-rule="evenodd"/><path  d="M4 14.375c0-.345.28-.625.625-.625h6.75a.625.625 0 1 1 0 1.25h-6.75A.625.625 0 0 1 4 14.375ZM7 5a1 1 0 0 1 2 0 1 1 0 0 1-2 0ZM10 5a1 1 0 1 1 2 0 1 1 0 1 1-2 0ZM4 8a1 1 0 0 1 2 0 1 1 0 0 1-2 0ZM7 8a1 1 0 0 1 2 0 1 1 0 0 1-2 0ZM10 8a1 1 0 1 1 2 0 1 1 0 1 1-2 0Z"/></svg>
\ No newline at end of file
diff --git a/icons/pwa-remove.svg b/icons/pwa-remove.svg
new file mode 100644
index 00000000..3362b74e
--- /dev/null
+++ b/icons/pwa-remove.svg
@@ -0,0 +1 @@
+<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"><path  fill-rule="evenodd" d="M3.63 2.255c-.76 0-1.375.616-1.375 1.375v5.74c0 .76.616 1.375 1.375 1.375h8.74c.76 0 1.375-.616 1.375-1.375V9a.625.625 0 1 1 1.25 0v.37a2.625 2.625 0 0 1-2.625 2.625H8.625V14a.625.625 0 1 1-1.25 0v-2.005H3.63A2.625 2.625 0 0 1 1.005 9.37V3.63A2.625 2.625 0 0 1 3.63 1.005H7a.625.625 0 1 1 0 1.25H3.63Z" clip-rule="evenodd"/><path  d="M4 14.375c0-.345.28-.625.625-.625h6.75a.625.625 0 1 1 0 1.25h-6.75A.625.625 0 0 1 4 14.375Z"/><path  fill-rule="evenodd" d="M9.188 1.188a.625.625 0 0 1 .884 0l1.933 1.933 1.933-1.933a.625.625 0 1 1 .884.884l-1.933 1.933 1.933 1.933a.625.625 0 1 1-.884.884l-1.933-1.933-1.933 1.933a.625.625 0 1 1-.884-.884l1.933-1.933-1.933-1.933a.625.625 0 0 1 0-.884Z" clip-rule="evenodd"/></svg>
\ No newline at end of file
diff --git a/icons/relay-logo.svg b/icons/relay-logo.svg
new file mode 100644
index 00000000..b3ee0aae
--- /dev/null
+++ b/icons/relay-logo.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 width="22" height="22" viewBox="0 0 22 22" fill="context-fill" fill-opacity="context-fill-opacity" xmlns="http://www.w3.org/2000/svg">
+	<path d="M20.054,4.777l-8.112-4.542c-0.579-0.313-1.277-0.313-1.856,0l-8.14,4.542C1.347,5.115,0.977,5.748,0.975,6.434v9.112c-0.005,0.689,0.368,1.324,0.971,1.655l8.112,4.542c0.283,0.17,0.61,0.26,0.942,0.257c0.331-0.001,0.657-0.089,0.943-0.257l8.112-4.542c0.598-0.337,0.969-0.969,0.971-1.655V6.434C21.022,5.748,20.652,5.115,20.054,4.777z M6.421,14.289c-0.054,0.194-0.183,0.357-0.359,0.455l-0.485,0.285c-0.115,0.055-0.243,0.085-0.371,0.087c-0.275-0.004-0.528-0.158-0.657-0.4c-0.1-0.173-0.126-0.381-0.073-0.573c0.054-0.194,0.183-0.357,0.359-0.454l0.481-0.283c0.371-0.228,0.826-0.087,1.033,0.312C6.449,13.889,6.475,14.095,6.421,14.289z M6.348,8.205c-0.131,0.242-0.382,0.396-0.657,0.4C5.562,8.603,5.435,8.574,5.32,8.519L4.834,8.233C4.649,8.141,4.508,7.978,4.447,7.78C4.385,7.582,4.408,7.367,4.51,7.186c0.102-0.18,0.274-0.312,0.474-0.362C5.185,6.773,5.398,6.809,5.573,6.92l0.485,0.285C6.431,7.404,6.572,7.861,6.348,8.205z M9.416,12.576c-0.054,0.193-0.183,0.357-0.357,0.454l-1.001,0.572c-0.115,0.055-0.242,0.084-0.37,0.085c-0.276-0.004-0.527-0.157-0.657-0.4c-0.1-0.173-0.126-0.381-0.073-0.573c0.054-0.192,0.183-0.356,0.359-0.454l1-0.572c0.177-0.095,0.386-0.115,0.579-0.056c0.192,0.059,0.355,0.193,0.448,0.371C9.442,12.176,9.468,12.382,9.416,12.576z M9.343,9.918c-0.131,0.243-0.381,0.396-0.656,0.4c-0.128-0.001-0.256-0.03-0.371-0.085l-1-0.572C6.952,9.442,6.827,8.976,7.03,8.605c0.098-0.176,0.261-0.304,0.454-0.357c0.194-0.054,0.4-0.028,0.573,0.073l1,0.571c0.176,0.098,0.304,0.261,0.357,0.455C9.469,9.537,9.443,9.745,9.343,9.918z M12.342,11.604c-0.081,0.164-0.225,0.287-0.4,0.342v5.793c0,0.426-0.345,0.771-0.771,0.771s-0.771-0.345-0.771-0.771v-5.767c-0.173-0.055-0.318-0.179-0.4-0.342c-0.107-0.203-0.118-0.445-0.028-0.657c-0.091-0.212-0.08-0.454,0.029-0.657c0.081-0.164,0.225-0.287,0.4-0.342V4.206c0-0.426,0.345-0.771,0.771-0.771s0.771,0.345,0.771,0.771v5.741c0.175,0.055,0.319,0.179,0.4,0.344c0.109,0.203,0.12,0.444,0.029,0.656C12.461,11.158,12.45,11.4,12.342,11.604z M15.313,13.26c-0.131,0.242-0.382,0.395-0.657,0.4c-0.128-0.001-0.256-0.03-0.371-0.085l-1-0.572c-0.349-0.212-0.467-0.661-0.267-1.017s0.648-0.487,1.009-0.297l1,0.572C15.398,12.46,15.513,12.946,15.313,13.26z M15.385,9.207c-0.054,0.194-0.183,0.357-0.359,0.455l-1,0.571c-0.115,0.055-0.242,0.085-0.371,0.085c-0.275-0.004-0.527-0.157-0.657-0.4c-0.099-0.173-0.125-0.379-0.071-0.573c0.054-0.194,0.183-0.357,0.359-0.455l1-0.571c0.179-0.095,0.386-0.115,0.58-0.056c0.192,0.059,0.355,0.192,0.45,0.371C15.414,8.807,15.44,9.014,15.385,9.207z M17.798,14.657c-0.131,0.242-0.382,0.396-0.657,0.4c-0.128-0.001-0.256-0.03-0.371-0.085l-0.487-0.286c-0.344-0.213-0.459-0.66-0.258-1.013c0.199-0.352,0.642-0.484,1.002-0.298l0.485,0.285C17.883,13.887,17.997,14.345,17.798,14.657z M17.868,7.806c-0.054,0.192-0.181,0.356-0.356,0.455l-0.485,0.286c-0.115,0.055-0.242,0.084-0.371,0.085c-0.271,0.01-0.525-0.135-0.657-0.371c-0.1-0.173-0.126-0.381-0.073-0.573s0.183-0.356,0.358-0.454l0.487-0.286c0.175-0.099,0.379-0.124,0.573-0.07c0.192,0.054,0.356,0.181,0.455,0.356C17.895,7.407,17.922,7.613,17.868,7.806z"/>
+</svg>
\ No newline at end of file
diff --git a/install.sh b/install.sh
index 185af73f..ab6c3772 100755
--- a/install.sh
+++ b/install.sh
@@ -185,7 +185,7 @@ write_file() {
 get_ini_section() {
   local filePath="$1"
 
-  local output=$(grep -E "^\[" "${filePath}" |sed -e "s/^\[//g" -e "s/\]$//g")
+  local output="$(grep -E "^\[" "${filePath}" |sed -e "s/^\[//g" -e "s/\]$//g")"
   echo "${output}"
 }
 get_ini_value() {
@@ -195,11 +195,11 @@ get_ini_value() {
 
   local output=""
   if [ "${section}" == "" ]; then
-    output=$(grep -E "^${key}" "${filePath}" | cut -f 2 -d"=")
+    output="$(grep -E "^${key}" "${filePath}" | cut -f 2 -d"=")"
     echo "${output}"
   else
     local sectionStart=""
-    for line in $(cat "${filePath}"); do
+    while IFS= read line; do
       if [[ "${sectionStart}" == "true" && "${line}" == "["* ]]; then
         return 0
       fi
@@ -209,12 +209,12 @@ get_ini_value() {
       fi
 
       if [ "${sectionStart}" == "true" ]; then
-        output=$(echo "${line}" | grep -E "^${key}" | cut -f 2 -d"=" )
+        output="$(echo "${line}" | grep -E "^${key}" | cut -f 2 -d"=" )"
         if [ "${output}" != "" ]; then
           echo "${output}"
         fi
       fi
-    done
+    done < "${filePath}"
   fi
 }
 
@@ -543,7 +543,7 @@ write_lepton_info() {
     fi
     for key in "Type" "Branch" "Ver" "Path"; do
       eval "local value=\${${key}}"
-      output="${output}$(set_ini_value ${key} ${value})"
+      output="${output}$(set_ini_value "${key}" "${value}")"
     done
 
     # Latest element flushing
diff --git a/src/bookmarkbar/_multi_row.scss b/src/bookmarkbar/_multi_row.scss
index 06dbd38f..dc653c49 100644
--- a/src/bookmarkbar/_multi_row.scss
+++ b/src/bookmarkbar/_multi_row.scss
@@ -5,6 +5,7 @@
   --uc-multirow-bookmark-rows: 3;
   --uc-multirow-bookmark-row-margin: 2px;
   max-height: none !important;
+  height: unset !important; // var(--bookmarks-toolbar-overlapping-browser-height)
 }
 
 #PlacesToolbar > hbox {
@@ -18,7 +19,7 @@
   overflow-y: auto;
   scroll-snap-type: y mandatory;
   max-height: calc(var(--uc-multirow-bookmark-rows) *
-                   (var(--uc-bm-height, calc(20px + (2 * var(--bookmark-block-padding, 4px)))) +
+                   (var(--uc-bm-height, calc(20px + var(--bookmark-block-padding, 4px))) +
                     (2 * var(--uc-multirow-bookmark-row-margin)))) !important;
 }
 
diff --git a/src/contents/dark_mode/_support_org.scss b/src/contents/dark_mode/_support_org.scss
index c1bd9b07..b0deeaa8 100644
--- a/src/contents/dark_mode/_support_org.scss
+++ b/src/contents/dark_mode/_support_org.scss
@@ -55,6 +55,7 @@
   }
 
   /* Text */
+  blockquote,
   .mzp-c-menu-category .mzp-c-menu-title,
   .mzp-c-menu-item .mzp-c-menu-item-link,
   .mzp-c-menu-item .mzp-c-menu-item-link > *,
@@ -156,6 +157,9 @@
     color: var(--in-content-page-color) !important;
   }
 
+  blockquote {
+    border-color: var(--in-content-border-color) !important;
+  }
   .sumo-button.secondary-button {
     border-color: transparent !important;
   }
diff --git a/src/icons/_global_menu.scss b/src/icons/_global_menu.scss
index 95d9dcea..0c93d6f4 100644
--- a/src/icons/_global_menu.scss
+++ b/src/icons/_global_menu.scss
@@ -313,6 +313,9 @@ menu.share-tab-url-item {
 #menu_openHelp {
   --menuitem-image: url("chrome://global/skin/icons/help.svg");
 }
+#help_reportBrokenSite {
+  --menuitem-image: url("chrome://global/skin/icons/lightbulb.svg");
+}
 #feedbackPage {
   --menuitem-image: url("../icons/send.svg");
 }
diff --git a/src/icons/_panel.scss b/src/icons/_panel.scss
index f48eae2d..2b0a8594 100644
--- a/src/icons/_panel.scss
+++ b/src/icons/_panel.scss
@@ -379,6 +379,7 @@ panelMenuBookmarkThisPage[starred] {
 #appMenu_troubleShooting {
   list-style-image: url("chrome://global/skin/icons/more.svg");
 }
+#appMenu-report-broken-site-button,
 #appMenu_help_reportSiteIssue {
   list-style-image: url("chrome://global/skin/icons/lightbulb.svg");
 }
diff --git a/src/icons/context_menu/_content_area.scss b/src/icons/context_menu/_content_area.scss
index f3b34406..e10c0a62 100644
--- a/src/icons/context_menu/_content_area.scss
+++ b/src/icons/context_menu/_content_area.scss
@@ -25,9 +25,7 @@
 #context-openlinkincurrent {
   --menuitem-image: url("../icons/link-square.svg");
 }
-#context-openlinkincontainertab {
-  --menuitem-image: var(--uc-new-tab-icon);
-}
+#context-openlinkincontainertab,
 #context-openlinkintab {
   --menuitem-image: var(--uc-new-tab-icon);
 }
@@ -168,32 +166,44 @@
 #fill-login-generated-password {
   --menuitem-image: url("chrome://browser/skin/login.svg");
 }
+#use-relay-mask {
+  --menuitem-image: url("../icons/relay-logo.svg");
+}
 #manage-saved-logins {
   --menuitem-image: url("../icons/key-multiple.svg");
 }
 
-#context-undo {
+#context-undo,
+#context-pdfjs-undo {
   --menuitem-image: url("../icons/undo.svg");
 }
-#context-redo {
+#context-redo,
+#context-pdfjs-redo {
   @include Option("userChrome.icon.menu.full") {
     --menuitem-image: url("../icons/redo.svg");
   }
 }
 
-#context-cut {
+#context-cut,
+#context-pdfjs-cut {
   --menuitem-image: url("../icons/edit-cut.svg");
 }
-#context-copy {
+#context-copy,
+#context-pdfjs-copy {
   --menuitem-image: url("../icons/edit-copy.svg");
 }
-#context-paste {
+#context-paste,
+#context-pdfjs-paste {
   --menuitem-image: url("../icons/edit-paste.svg");
 }
-#context-delete {
+#context-paste-no-formatting {
+}
+#context-delete,
+#context-pdfjs-delete {
   --menuitem-image: url("chrome://global/skin/icons/delete.svg");
 }
-#context-selectall {
+#context-selectall,
+#context-pdfjs-selectall {
   --menuitem-image: url("../icons/select-all-on.svg");
 }
 #context-reveal-password {
diff --git a/src/icons/fork_browsers/_floorp.scss b/src/icons/fork_browsers/_floorp.scss
index 1e6e15bb..67c39475 100644
--- a/src/icons/fork_browsers/_floorp.scss
+++ b/src/icons/fork_browsers/_floorp.scss
@@ -1,3 +1,12 @@
+// Page Action button. Not always visible
+#ssbPageAction-image {
+  list-style-image: url("../icons/pwa-install.svg");
+  &[open-ssb="true"] {
+    // Page Action button. If page has been already installed or can be install PWA
+    list-style-image: url("../icons/pwa-launch.svg");
+  }
+}
+
 @include Option("userChrome.icon.panel") {
   #rebootappmenu {
     list-style-image: url("../icons/refresh-cw.svg");
@@ -6,6 +15,20 @@
   #openprofiledir {
     list-style-image: var(--uc-folder-icon);
   }
+
+  // Panel UI top button
+  #appMenu-ssb-button {
+    list-style-image: url("../icons/pwa-manage.svg");
+  }
+
+  // Panel UI subView button  for install ssb
+  #appMenu-install-or-open-ssb-current-page-button {
+    list-style-image: url("../icons/pwa-install.svg");
+    &[open-ssb="true"] {
+      // Panel UI subView button  for open ssb window
+      list-style-image: url("../icons/pwa-launch.svg");
+    }
+  }
 }
 @include Option("userChrome.icon.menu") {
   #toggle_sharemode {
@@ -62,4 +85,12 @@
   #deleteWebpanelMenu {
     --menuitem-image: url("chrome://global/skin/icons/delete.svg");
   }
+
+  // PWA Context Menu
+  #run-ssb-contextmenu {
+    --menuitem-image: url("../icons/pwa-launch.svg");
+  }
+  #uninstall-ssb-contextmenu {
+    --menuitem-image: url("../icons/pwa-remove.svg");
+  }
 }
diff --git a/src/icons/layout/_menu.scss b/src/icons/layout/_menu.scss
index 03e3bf4d..b94e82f5 100644
--- a/src/icons/layout/_menu.scss
+++ b/src/icons/layout/_menu.scss
@@ -94,6 +94,11 @@ $_layoutCommonMenus: (
     @include _layoutIconMenus {
       @include _layout_init_non_native();
     }
+
+    // FF v121
+    .menupopup-arrowscrollbox {
+      padding-inline: 0 !important; /* Original: padding: var(--panel-padding); --panel-padding-block: 4px; */
+    }
   }
 }
 
diff --git a/src/tab/_selected_tab.scss b/src/tab/_selected_tab.scss
index 4cbdd848..aeb05322 100644
--- a/src/tab/_selected_tab.scss
+++ b/src/tab/_selected_tab.scss
@@ -45,15 +45,18 @@
   "userChrome.tab.photon_like_contextline",
   "userChrome.tab.static_separator",
   "userChrome.tab.bar_separator") {
-  :root[lwtheme-mozlightdark] #tabbrowser-tabs, /* Legacy: v96 */
-  :root[style*="--lwt-accent-color: rgb(240, 240, 244); --lwt-text-color: rgba(21, 20, 26);"],
-  :root[style*="--lwt-accent-color: rgb(28, 27, 34); --lwt-text-color: rgba(251, 251, 254);"] {
-    --tab-line-color: rgb(10, 132, 255) !important;
+  @include Option("userChrome.tab.blue_accent") {
+    :root,
+    #tabbrowser-tabs {
+      --tab-line-color: rgb(10, 132, 255) !important;
+    }
   }
-  @include OS("linux") {
-    :root:not(:-moz-lwtheme) #tabbrowser-tabs {
-      @include AccentColor("Highlight") {
-        --tab-line-color: #{$accentColor} !important; /* -moz-accent-color */
+  @include NotOption("userChrome.tab.blue_accent") {
+    @include OS("linux") {
+      :root:not(:-moz-lwtheme) #tabbrowser-tabs {
+        @include AccentColor("Highlight") {
+          --tab-line-color: #{$accentColor} !important; /* -moz-accent-color */
+        }
       }
     }
   }
diff --git a/src/tab/selected_tab/_color_like_toolbar.scss b/src/tab/selected_tab/_color_like_toolbar.scss
index 48b673ec..5e3e3232 100644
--- a/src/tab/selected_tab/_color_like_toolbar.scss
+++ b/src/tab/selected_tab/_color_like_toolbar.scss
@@ -3,6 +3,10 @@
   --tab-selected-bgcolor: unset !important; /* Original: rgb(255,255,255); */
   --tab-selected-bgimage: unset !important; /* Above FF v101 */
 }
+#TabsToolbar #firefox-view-button[open] > .toolbarbutton-icon, .tab-background:is([selected], [multiselected]) {
+  background-color: var(--tab-selected-bgcolor, var(--toolbar-bgcolor)) !important;
+}
+
 #tabbrowser-tabs:not([movingtab])
   > #tabbrowser-arrowscrollbox
   > .tabbrowser-tab
diff --git a/src/theme/_fully_color.scss b/src/theme/_fully_color.scss
index 503bd828..7be2d911 100644
--- a/src/theme/_fully_color.scss
+++ b/src/theme/_fully_color.scss
@@ -182,7 +182,7 @@ html|button.ghost-button:not(.semi-transparent):enabled:hover:active {
 }
 
 /*== Sidebar - Field Color ===================================================*/
-html[lwt-sidebar] body {
+html[lwt-sidebar]:not(#main-window) body {
   background-color: var(--lwt-sidebar-background-color, Field) !important;
   color: var(--lwt-sidebar-text-color, FieldText) !important;
 }