diff --git a/alternative_user_files/userContent_no_addons.css b/alternative_user_files/userContent_no_addons.css
index dd02869..c33e331 100644
--- a/alternative_user_files/userContent_no_addons.css
+++ b/alternative_user_files/userContent_no_addons.css
@@ -603,6 +603,7 @@ url-prefix(https://discovery.addons.mozilla.org) {
   }
 }
 @-moz-document url-prefix(chrome://) {
+  #ColorsDialogPane,
   #ConnectionsDialogPane,
   #FontsDialogPane,
   #LanguagesDialogPane,
@@ -929,4 +930,4 @@ url-prefix(https://discovery.addons.mozilla.org) {
   .highlight .error > :-moz-any(.start-tag,.end-tag,.comment,.cdata,.doctype,.pi,.entity,.attribute-name,.attribute-value) {
     color: #de7474!important
   }
-}
\ No newline at end of file
+}
diff --git a/css/userContent-files/about_pages.css b/css/userContent-files/about_pages.css
index 8247a05..0d06e7b 100644
--- a/css/userContent-files/about_pages.css
+++ b/css/userContent-files/about_pages.css
@@ -403,6 +403,7 @@ url-prefix(https://discovery.addons.mozilla.org) {
   }
 }
 @-moz-document url-prefix(chrome://) {
+  #ColorsDialogPane,
   #ConnectionsDialogPane,
   #FontsDialogPane,
   #LanguagesDialogPane,
@@ -421,4 +422,4 @@ url-prefix(https://discovery.addons.mozilla.org) {
   #historyItems {
     -moz-appearance: none!important
   }
-}
\ No newline at end of file
+}
diff --git a/userContent.css b/userContent.css
index 23d692d..6b99357 100644
--- a/userContent.css
+++ b/userContent.css
@@ -603,6 +603,7 @@ url-prefix(https://discovery.addons.mozilla.org) {
   }
 }
 @-moz-document url-prefix(chrome://) {
+  #ColorsDialogPane,
   #ConnectionsDialogPane,
   #FontsDialogPane,
   #LanguagesDialogPane,