--- a/netwerk/dns/TRRService.cpp
+++ b/netwerk/dns/TRRService.cpp
@@ -298,19 +298,21 @@ TRRService::Observe(nsISupports *aSubjec
           if (mTRRBLStorage) {
             mTRRBLStorage->Clear();
           }
           mClearTRRBLStorage = false;
         }
       }
     }
 
-    if (mConfirmationState != CONFIRM_OK) {
-      mConfirmationState = CONFIRM_TRYING;
-      MaybeConfirm();
+    if (!mCaptiveIsPassed) {
+      if (mConfirmationState != CONFIRM_OK) {
+        mConfirmationState = CONFIRM_TRYING;
+        MaybeConfirm();
+      }
     } else {
       LOG(("TRRservice CP clear when already up!\n"));
     }
 
     mCaptiveIsPassed = true;
 
   } else if (!strcmp(aTopic, kClearPrivateData) ||
              !strcmp(aTopic, kPurge)) {