diff --git a/chrome/navbar_tabs_oneliner.css b/chrome/navbar_tabs_oneliner.css
index e54f9c8..a726353 100644
--- a/chrome/navbar_tabs_oneliner.css
+++ b/chrome/navbar_tabs_oneliner.css
@@ -56,3 +56,6 @@ urlbar_full_width.css is VERY MUCH recommended for Firefox 71+ because of new ur
 
 /* Hide dropdown placeholder */
 #urlbar-container:not(:hover) .urlbar-history-dropmarker{ margin-inline-start: -28px; }
+
+/* Fix customization view */
+#customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
diff --git a/chrome/navbar_tabs_oneliner_tabs_on_left.css b/chrome/navbar_tabs_oneliner_tabs_on_left.css
index 0155c5c..89b45a0 100644
--- a/chrome/navbar_tabs_oneliner_tabs_on_left.css
+++ b/chrome/navbar_tabs_oneliner_tabs_on_left.css
@@ -69,3 +69,5 @@ Window controls will be all wrong without it
 
 /* Hide dropdown placeholder */
 #urlbar-container:not(:hover) .urlbar-history-dropmarker{ margin-inline-start: -28px; }
+/* Fix customization view */
+#customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
\ No newline at end of file
diff --git a/chrome/navbar_tabs_responsive_oneliner.css b/chrome/navbar_tabs_responsive_oneliner.css
index 16cff25..5524b05 100644
--- a/chrome/navbar_tabs_responsive_oneliner.css
+++ b/chrome/navbar_tabs_responsive_oneliner.css
@@ -45,4 +45,6 @@ Window controls will be all wrong without it
 
   /* Hide dropdown placeholder */
   #urlbar-container:not(:hover) .urlbar-history-dropmarker{ margin-inline-start: -28px; }
-}
\ No newline at end of file
+}
+/* Fix customization view */
+#customization-panelWrapper > .panel-arrowbox > .panel-arrow{ margin-inline-end: initial !important; }
\ No newline at end of file