diff --git a/current/css/aboutpreferences/firefox_support_always_hidden.css b/current/css/aboutpreferences/firefox_support_always_hidden.css
new file mode 100644
index 00000000..72881da1
--- /dev/null
+++ b/current/css/aboutpreferences/firefox_support_always_hidden.css
@@ -0,0 +1,12 @@
+/* Firefox userContent.css tweaks *******************************************************/
+/* Github: https://github.com/aris-t2/customcssforfx ************************************/
+/****************************************************************************************/
+
+
+@-moz-document url(about:preferences),url-prefix(about:preferences),url(about:settings),url-prefix(about:settings) {
+
+	#helpButton {
+	  display: none !important;
+	}
+
+}
diff --git a/current/css/generalui/close_icon_firefox3.css b/current/css/generalui/close_icon_firefox3.css
index 158d41ff..e67e9e3d 100644
--- a/current/css/generalui/close_icon_firefox3.css
+++ b/current/css/generalui/close_icon_firefox3.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_gchrome.css b/current/css/generalui/close_icon_gchrome.css
index 42fdad70..c65b3718 100644
--- a/current/css/generalui/close_icon_gchrome.css
+++ b/current/css/generalui/close_icon_gchrome.css
@@ -30,6 +30,7 @@
   list-style-image: url("./../../image/close_gc_a.png") !important;
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -57,8 +58,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_red.css b/current/css/generalui/close_icon_red.css
index eb6843c1..5c036fec 100644
--- a/current/css/generalui/close_icon_red.css
+++ b/current/css/generalui/close_icon_red.css
@@ -30,6 +30,7 @@
   list-style-image: url("./../../image/close_alt_a.png") !important;
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -57,8 +58,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows10.css b/current/css/generalui/close_icon_windows10.css
index 77e7d54e..77f1d66d 100644
--- a/current/css/generalui/close_icon_windows10.css
+++ b/current/css/generalui/close_icon_windows10.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows10inverted.css b/current/css/generalui/close_icon_windows10inverted.css
index 88365909..4bdecb3e 100644
--- a/current/css/generalui/close_icon_windows10inverted.css
+++ b/current/css/generalui/close_icon_windows10inverted.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows10red.css b/current/css/generalui/close_icon_windows10red.css
index 5ed379df..2a1c6953 100644
--- a/current/css/generalui/close_icon_windows10red.css
+++ b/current/css/generalui/close_icon_windows10red.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows10redv2.css b/current/css/generalui/close_icon_windows10redv2.css
index 93c463a9..42b42bf9 100644
--- a/current/css/generalui/close_icon_windows10redv2.css
+++ b/current/css/generalui/close_icon_windows10redv2.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows7.css b/current/css/generalui/close_icon_windows7.css
index 74d5195d..7a0f61ae 100644
--- a/current/css/generalui/close_icon_windows7.css
+++ b/current/css/generalui/close_icon_windows7.css
@@ -51,6 +51,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -78,8 +79,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows7inverted.css b/current/css/generalui/close_icon_windows7inverted.css
index f294cace..67860578 100644
--- a/current/css/generalui/close_icon_windows7inverted.css
+++ b/current/css/generalui/close_icon_windows7inverted.css
@@ -30,6 +30,7 @@
   list-style-image: url("./../../image/close_w7i_a.png") !important;
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -57,8 +58,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/generalui/close_icon_windows7v2.css b/current/css/generalui/close_icon_windows7v2.css
index 4ba3f586..9a712164 100644
--- a/current/css/generalui/close_icon_windows7v2.css
+++ b/current/css/generalui/close_icon_windows7v2.css
@@ -59,6 +59,7 @@
   }
 }
 
+/*
 #closetab_fmarin_com-BAP,
 #tabmix-tabs-closebutton,
 #TabsToolbar #closetab_fmarin_com-browser-action .toolbarbutton-icon,
@@ -86,8 +87,14 @@
 #TabsToolbar .tabbrowser-tab .tab-content .close-icon {
   background: unset !important;
 }
+*/
 
-.tab-close-button {
+* .close-icon {
+  background: unset !important;
+  box-shadow: unset !important;
+}
+
+.tabbrowser-tab .tab-close-button {
   width: 16px !important;
   height: 16px !important;
   padding: unset !important;
diff --git a/current/css/locationbar/ac_popup_megabar_title_and_url_50percent_width.css b/current/css/locationbar/ac_popup_megabar_title_and_url_50percent_width.css
index cdb15e5a..03fe5622 100644
--- a/current/css/locationbar/ac_popup_megabar_title_and_url_50percent_width.css
+++ b/current/css/locationbar/ac_popup_megabar_title_and_url_50percent_width.css
@@ -45,7 +45,7 @@
 }
 
 #urlbar .urlbarView-row:is([type=search],[type=remotetab],[type=switchtab],[type=dynamic],[sponsored]) .urlbarView-title {
-  width: calc(50% - 26px) !important;
+  width: calc(100% - 26px) !important;
 }
 
 /* do not hide actiontype item */
diff --git a/current/css/tabs/tabs_below_navigation_toolbar.css b/current/css/tabs/tabs_below_navigation_toolbar.css
index f46feb27..91c352e9 100644
--- a/current/css/tabs/tabs_below_navigation_toolbar.css
+++ b/current/css/tabs/tabs_below_navigation_toolbar.css
@@ -186,3 +186,8 @@
   -moz-window-dragging: no-drag !important;
 }	
 }
+
+/* Fx 126+ */
+:root[lwtheme] #nav-bar {
+  border-top: 0 !important;
+}
diff --git a/current/css/toolbars/menubar_color.css b/current/css/toolbars/menubar_color.css
index 5dd4fefe..a0782551 100644
--- a/current/css/toolbars/menubar_color.css
+++ b/current/css/toolbars/menubar_color.css
@@ -9,7 +9,7 @@
 }
 
 :root[lwtheme] #toolbar-menubar {
-  background-image: var(--colored_menubar_background_image) !important;
+  /*background-image: var(--colored_menubar_background_image) !important;*/
   border: 0px !important;
   margin-bottom: -1px !important;
 }
diff --git a/current/userChrome.css b/current/userChrome.css
index 08986f87..01061333 100644
--- a/current/userChrome.css
+++ b/current/userChrome.css
@@ -2,7 +2,7 @@
   Firefox userChrome.css tweaks: main file
   
   Custom CSS for Firefox 115+
-  Current version: 4.5.0
+  Current version: 4.5.1
 
   Based on 'Classic Theme Restorer' & 'Classic Toolbar Buttons' add-ons CSS code 
   Github: https://github.com/aris-t2/customcssforfx
diff --git a/current/userContent.css b/current/userContent.css
index 9feef699..c5afbcec 100644
--- a/current/userContent.css
+++ b/current/userContent.css
@@ -153,6 +153,7 @@
 /* @import "./css/aboutpreferences/category_morefrommozilla_hidden.css"; /**/
 /* @import "./css/aboutpreferences/category_nightlyexperiments_hidden.css"; /**/
 /* @import "./css/aboutpreferences/sync_category_always_hidden.css"; /**/
+/* @import "./css/aboutpreferences/firefox_support_always_hidden.css"; /**/
 
 
 /* =========================