--- a/toolkit/themes/shared/extensions/extensions.inc.css
+++ b/toolkit/themes/shared/extensions/extensions.inc.css
@@ -995,23 +995,23 @@ button.button-link:not([disabled="true"]
 .addon-control.replacement {
   background-color: var(--in-content-primary-button-background);
   border-color: var(--in-content-primary-button-background);
   color: var(--in-content-selected-text);
 }
 
 .addon-control.replacement:active,
 .addon-control.replacement:hover {
-  background-color: var(--in-content-primary-button-hover);
-  border-color: var(--in-content-primary-button-hover);
+  background-color: var(--in-content-primary-button-background-hover);
+  border-color: var(--in-content-primary-button-background-hover);
 }
 
 .addon-control.replacement:active:hover {
-  background-color: var(--in-content-primary-button-active);
-  border-color: var(--in-content-primary-button-active);
+  background-color: var(--in-content-primary-button-background-active);
+  border-color: var(--in-content-primary-button-background-active);
 }
 
 /*** telemetry experiments ***/
 
 #detail-experiment-container {
   font-size: 80%;
   margin-bottom: 1em;
 }