diff --git a/dom/fetch/FetchService.cpp b/dom/fetch/FetchService.cpp
index b5e60bbd27fb..fcdddf2f772a 100644
--- a/dom/fetch/FetchService.cpp
+++ b/dom/fetch/FetchService.cpp
@@ -45,9 +45,9 @@ FetchServicePromises::FetchServicePromises()
           MakeRefPtr<FetchServiceResponseTimingPromise::Private>(__func__)),
       mEndPromise(
           MakeRefPtr<FetchServiceResponseEndPromise::Private>(__func__)) {
-  mAvailablePromise->UseSynchronousTaskDispatch(__func__);
-  mTimingPromise->UseSynchronousTaskDispatch(__func__);
-  mEndPromise->UseSynchronousTaskDispatch(__func__);
+  mAvailablePromise->UseDirectTaskDispatch(__func__);
+  mTimingPromise->UseDirectTaskDispatch(__func__);
+  mEndPromise->UseDirectTaskDispatch(__func__);
 }
 
 RefPtr<FetchServiceResponseAvailablePromise>
diff --git a/dom/serviceworkers/FetchEventOpProxyChild.cpp b/dom/serviceworkers/FetchEventOpProxyChild.cpp
index 3fd531373c0c..1c9ef1fcd134 100644
--- a/dom/serviceworkers/FetchEventOpProxyChild.cpp
+++ b/dom/serviceworkers/FetchEventOpProxyChild.cpp
@@ -73,7 +73,7 @@ void FetchEventOpProxyChild::Initialize(
     mPreloadResponseAvailablePromise =
         MakeRefPtr<FetchEventPreloadResponseAvailablePromise::Private>(
             __func__);
-    mPreloadResponseAvailablePromise->UseSynchronousTaskDispatch(__func__);
+    mPreloadResponseAvailablePromise->UseDirectTaskDispatch(__func__);
     if (aArgs.preloadResponse().isSome()) {
       mPreloadResponseAvailablePromiseResolved = true;
       mPreloadResponseAvailablePromise->Resolve(
@@ -82,7 +82,7 @@ void FetchEventOpProxyChild::Initialize(
 
     mPreloadResponseTimingPromise =
         MakeRefPtr<FetchEventPreloadResponseTimingPromise::Private>(__func__);
-    mPreloadResponseTimingPromise->UseSynchronousTaskDispatch(__func__);
+    mPreloadResponseTimingPromise->UseDirectTaskDispatch(__func__);
     if (aArgs.preloadResponseTiming().isSome()) {
       mPreloadResponseTimingPromise->Resolve(
           aArgs.preloadResponseTiming().ref(), __func__);
@@ -90,7 +90,7 @@ void FetchEventOpProxyChild::Initialize(
 
     mPreloadResponseEndPromise =
         MakeRefPtr<FetchEventPreloadResponseEndPromise::Private>(__func__);
-    mPreloadResponseEndPromise->UseSynchronousTaskDispatch(__func__);
+    mPreloadResponseEndPromise->UseDirectTaskDispatch(__func__);
     if (aArgs.preloadResponseEndArgs().isSome()) {
       mPreloadResponseEndPromiseResolved = true;
       mPreloadResponseEndPromise->Resolve(aArgs.preloadResponseEndArgs().ref(),