Bug 1489007 - Turn the colour of the 'Disabled' warning when Content Blocking UI is turned off and tracking protection is off to grey; r=johannh

Differential Revision: https://phabricator.services.mozilla.com/D5940

browser/themes/shared/controlcenter/panel.inc.css

@@ -399,6 +399,11 @@ description#identity-popup-content-verifier,
   stroke: #d70022;
 }
 
+#identity-popup-content-blocking-content:not([contentBlockingUI]):not([enabled]) #identity-popup-content-blocking-disabled-label {
+  background-color: #b1b1b3;
+  stroke: #b1b1b3;
+}
+
 #identity-popup-content-blocking-content:not([enabled]) #identity-popup-content-blocking-disabled-label-exception {
   display: none;
 }