diff --git a/current/css/tabs/classic_squared_tabs_australized.css b/current/css/tabs/classic_squared_tabs_australized.css
index 930871c8..4756b667 100644
--- a/current/css/tabs/classic_squared_tabs_australized.css
+++ b/current/css/tabs/classic_squared_tabs_australized.css
@@ -286,7 +286,7 @@
 
 /* loading animation color */
 #TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab,
-#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:not([visuallyselected=true]) {
+#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:not([visuallyselected]) {
   --tab-loading-fill: var(--classic_squared_tabs_tab_default_loading_icon_color) !important;
 }
 .tab-throbber[busy]::before,
diff --git a/current/css/tabs/default_tabs_enhanced.css b/current/css/tabs/default_tabs_enhanced.css
index e5f33f33..fb19b04c 100644
--- a/current/css/tabs/default_tabs_enhanced.css
+++ b/current/css/tabs/default_tabs_enhanced.css
@@ -3,10 +3,10 @@
 /************************************************************************************************/
 
 
-.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected], [multiselected]) {
   background-color: color-mix(in srgb, currentColor 11%, transparent);
 }
 
-.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected], [multiselected]) {
   background-color: color-mix(in srgb, currentColor 17%, transparent) !important;
 }
diff --git a/current/css/tabs/default_tabs_photon_alt.css b/current/css/tabs/default_tabs_photon_alt.css
index b28b5047..68dd568a 100644
--- a/current/css/tabs/default_tabs_photon_alt.css
+++ b/current/css/tabs/default_tabs_photon_alt.css
@@ -24,8 +24,8 @@
   margin-block: 0px !important;
 }
 
-.tab-background[multiselected=true],
-.tab-background[selected=true] {
+.tab-background[multiselected],
+.tab-background[selected] {
   background-color: var(--toolbar-bgcolor) !important;
   background-image: var(--toolbar-bgimage) !important;
 }
@@ -127,8 +127,8 @@
 }
 
 /* remove active tabs left and right tab border color when using lw-themes */
-:root:not([lwtheme-mozlightdark]) #TabsToolbar:not([brighttext]) #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab:is([visuallyselected=true], [multiselected]) > .tab-stack > .tab-background:-moz-lwtheme,
-:root:not([lwtheme-mozlightdark]) #TabsToolbar[brighttext] #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab:is([visuallyselected=true], [multiselected]) > .tab-stack > .tab-background:-moz-lwtheme {
+:root:not([lwtheme-mozlightdark]) #TabsToolbar:not([brighttext]) #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab:is([visuallyselected], [multiselected]) > .tab-stack > .tab-background:-moz-lwtheme,
+:root:not([lwtheme-mozlightdark]) #TabsToolbar[brighttext] #tabbrowser-tabs:not([noshadowfortests]) .tabbrowser-tab:is([visuallyselected], [multiselected]) > .tab-stack > .tab-background:-moz-lwtheme {
   box-shadow: unset !important;
 }
 
diff --git a/current/css/tabs/default_tabs_with_colors.css b/current/css/tabs/default_tabs_with_colors.css
index b75f4804..acd11425 100644
--- a/current/css/tabs/default_tabs_with_colors.css
+++ b/current/css/tabs/default_tabs_with_colors.css
@@ -3,15 +3,15 @@
 /************************************************************************************************/
 
 
-#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected], [multiselected]) {
   background-image: var(--classic_squared_tabs_other_tabs) !important;
 }
 
-#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected], [multiselected]) {
   background-image: var(--classic_squared_tabs_hovered_tabs) !important;
 }
 
-#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab > .tab-stack > .tab-background:is([selected=true], [multiselected]) {
+#TabsToolbar:not(:-moz-lwtheme) .tabbrowser-tab > .tab-stack > .tab-background:is([selected], [multiselected]) {
   background-image: var(--classic_squared_tabs_active_tab) !important;
 }
 
@@ -23,26 +23,26 @@
 
 
 @media (-moz-content-prefers-color-scheme: dark) {
-	.tabbrowser-tab > .tab-stack > .tab-background:is([selected=true], [multiselected]) {
+	.tabbrowser-tab > .tab-stack > .tab-background:is([selected], [multiselected]) {
 	  background-image: var(--classic_squared_tabs_lwt-bright_active_tab) !important;
 	}
-	.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+	.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected], [multiselected]) {
 	  background-image: var(--classic_squared_tabs_lwt-bright_other_tabs) !important;
 	}
-	.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true], [multiselected])  {
+	.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected], [multiselected])  {
 	  background-image: var(--classic_squared_tabs_lwt-bright_hovered_tabs) !important;
 	}
 
 }
 
 @media (-moz-content-prefers-color-scheme: light) {
-	.tabbrowser-tab > .tab-stack > .tab-background:is([selected=true], [multiselected]) {
+	.tabbrowser-tab > .tab-stack > .tab-background:is([selected], [multiselected]) {
 	  background-image: var(--classic_squared_tabs_lwt-dark_active_tab) !important;
 	}
-	.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected=true], [multiselected]) {
+	.tabbrowser-tab:not(:hover) > .tab-stack > .tab-background:not([selected], [multiselected]) {
 	  background-image: var(--classic_squared_tabs_lwt-dark_other_tabs) !important;
 	}
-	.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true], [multiselected])  {
+	.tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected], [multiselected])  {
 	  background-image: var(--classic_squared_tabs_lwt-dark_hovered_tabs) !important;
 	}
 
diff --git a/current/userChrome.css b/current/userChrome.css
index 05f6e25e..f1787980 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: 4.4.2
+  Current version: 4.4.3
 
   Based on 'Classic Theme Restorer' & 'Classic Toolbar Buttons' add-ons CSS code 
   Github: https://github.com/aris-t2/customcssforfx