diff --git a/alternative_user_files/userChrome_windows.css b/alternative_user_files/userChrome_windows.css
index 297dc42..acf5df7 100644
--- a/alternative_user_files/userChrome_windows.css
+++ b/alternative_user_files/userChrome_windows.css
@@ -860,7 +860,7 @@ toolbar[brighttext] {
     #security-technical,
     #security-technical-groupbox {
       -moz-appearance: none!important;
-      background-color: var(--in-content-page-color)!important;
+      background-color: var(--in-content-page-background)!important;
       border: none!important;
       color: var(--in-content-selected-text)!important
     }
diff --git a/css/userChrome-files/page_info.css b/css/userChrome-files/page_info.css
index d6653da..1859d2f 100644
--- a/css/userChrome-files/page_info.css
+++ b/css/userChrome-files/page_info.css
@@ -106,7 +106,7 @@
     #security-technical,
     #security-technical-groupbox {
       -moz-appearance: none!important;
-      background-color: var(--in-content-page-color)!important;
+      background-color: var(--in-content-page-background)!important;
       border: none!important;
       color: var(--in-content-selected-text)!important
     }
diff --git a/userChrome.css b/userChrome.css
index 50e55c5..fd28bdf 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -865,7 +865,7 @@ toolbar[brighttext] {
     #security-technical,
     #security-technical-groupbox {
       -moz-appearance: none!important;
-      background-color: var(--in-content-page-color)!important;
+      background-color: var(--in-content-page-background)!important;
       border: none!important;
       color: var(--in-content-selected-text)!important
     }