diff --git a/docshell/base/BrowsingContext.cpp b/docshell/base/BrowsingContext.cpp
index 620d3afac8c1..d5a46d0a130e 100644
--- a/docshell/base/BrowsingContext.cpp
+++ b/docshell/base/BrowsingContext.cpp
@@ -806,7 +806,8 @@ void BrowsingContext::Location(JSContext* aCx,
 }
 
 nsresult BrowsingContext::LoadURI(BrowsingContext* aAccessor,
-                                  nsDocShellLoadState* aLoadState) {
+                                  nsDocShellLoadState* aLoadState,
+                                  bool aSetNavigating) {
   // Per spec, most load attempts are silently ignored when a BrowsingContext is
   // null (which in our code corresponds to discarded), so we simply fail
   // silently in those cases. Regardless, we cannot trigger loads in/from
@@ -816,12 +817,12 @@ nsresult BrowsingContext::LoadURI(BrowsingContext* aAccessor,
   }
 
   if (mDocShell) {
-    return mDocShell->LoadURI(aLoadState);
+    return mDocShell->LoadURI(aLoadState, aSetNavigating);
   }
 
   if (!aAccessor && XRE_IsParentProcess()) {
     Unused << Canonical()->GetCurrentWindowGlobal()->SendLoadURIInChild(
-        aLoadState);
+        aLoadState, aSetNavigating);
   } else {
     MOZ_DIAGNOSTIC_ASSERT(aAccessor);
     MOZ_DIAGNOSTIC_ASSERT(aAccessor->Group() == Group());
@@ -830,7 +831,7 @@ nsresult BrowsingContext::LoadURI(BrowsingContext* aAccessor,
     MOZ_DIAGNOSTIC_ASSERT(win);
     if (WindowGlobalChild* wgc =
             win->GetCurrentInnerWindow()->GetWindowGlobalChild()) {
-      wgc->SendLoadURI(this, aLoadState);
+      wgc->SendLoadURI(this, aLoadState, aSetNavigating);
     }
   }
   return NS_OK;
diff --git a/docshell/base/BrowsingContext.h b/docshell/base/BrowsingContext.h
index f1516708943c..5cf08f05d0ea 100644
--- a/docshell/base/BrowsingContext.h
+++ b/docshell/base/BrowsingContext.h
@@ -185,7 +185,8 @@ class BrowsingContext : public nsWrapperCache, public BrowsingContextBase {
   // Triggers a load in the process which currently owns this BrowsingContext.
   // aAccessor is the context which initiated the load, and may be null only for
   // in-process BrowsingContexts.
-  nsresult LoadURI(BrowsingContext* aAccessor, nsDocShellLoadState* aLoadState);
+  nsresult LoadURI(BrowsingContext* aAccessor, nsDocShellLoadState* aLoadState,
+                   bool aSetNavigating = false);
 
   // Determine if the current BrowsingContext was 'cached' by the logic in
   // CacheChildren.
diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp
index 9dd4ff6ff43e..0ba173b11b69 100644
--- a/docshell/base/nsDocShell.cpp
+++ b/docshell/base/nsDocShell.cpp
@@ -689,7 +689,7 @@ nsDocShell::SetCancelContentJSEpoch(int32_t aEpoch) {
 }
 
 NS_IMETHODIMP
-nsDocShell::LoadURI(nsDocShellLoadState* aLoadState) {
+nsDocShell::LoadURI(nsDocShellLoadState* aLoadState, bool aSetNavigating) {
   MOZ_ASSERT(aLoadState, "Must have a valid load state!");
   MOZ_ASSERT(
       (aLoadState->LoadFlags() & INTERNAL_LOAD_FLAGS_LOADURI_SETUP_FLAGS) == 0,
@@ -704,6 +704,13 @@ nsDocShell::LoadURI(nsDocShellLoadState* aLoadState) {
     }
   }
 
+  bool oldIsNavigating = mIsNavigating;
+  auto cleanupIsNavigating =
+      MakeScopeExit([&]() { mIsNavigating = oldIsNavigating; });
+  if (aSetNavigating) {
+    mIsNavigating = true;
+  }
+
   PopupBlocker::PopupControlState popupState;
   if (aLoadState->LoadFlags() & LOAD_FLAGS_ALLOW_POPUPS) {
     popupState = PopupBlocker::openAllowed;
@@ -3848,8 +3855,7 @@ nsresult nsDocShell::LoadURI(const nsAString& aURI,
     return NS_ERROR_FAILURE;
   }
 
-  rv = LoadURI(loadState);
-  return rv;
+  return LoadURI(loadState, true);
 }
 
 NS_IMETHODIMP
@@ -5740,7 +5746,7 @@ nsDocShell::ForceRefreshURI(nsIURI* aURI, nsIPrincipal* aPrincipal,
    * LoadURI(...) will cancel all refresh timers... This causes the
    * Timer and its refreshData instance to be released...
    */
-  LoadURI(loadState);
+  LoadURI(loadState, false);
 
   return NS_OK;
 }
diff --git a/docshell/base/nsIDocShell.idl b/docshell/base/nsIDocShell.idl
index 7dd8692e3427..6251da852c0f 100644
--- a/docshell/base/nsIDocShell.idl
+++ b/docshell/base/nsIDocShell.idl
@@ -84,9 +84,11 @@ interface nsIDocShell : nsIDocShellTreeItem
    * however, the URL dispatcher will go through its normal process of content
    * loading.
    *
-   * @param loadState   - This is the extended load info for this load.
+   * @param aLoadState This is the extended load info for this load.
+   * @param aSetNavigating If we should set isNavigating to true while initiating
+   *                       the load.
    */
-  [noscript]void loadURI(in nsDocShellLoadStatePtr loadState);
+  [noscript]void loadURI(in nsDocShellLoadStatePtr aLoadState, in boolean aSetNavigating);
 
   /**
    * Do either a history.pushState() or history.replaceState() operation,
diff --git a/docshell/shistory/nsSHistory.cpp b/docshell/shistory/nsSHistory.cpp
index c42f27824969..7f45f0b8146d 100644
--- a/docshell/shistory/nsSHistory.cpp
+++ b/docshell/shistory/nsSHistory.cpp
@@ -1482,5 +1482,5 @@ nsresult nsSHistory::InitiateLoad(nsISHEntry* aFrameEntry,
   loadState->SetCsp(csp);
 
   // Time to initiate a document load
-  return aFrameDS->LoadURI(loadState);
+  return aFrameDS->LoadURI(loadState, false);
 }
diff --git a/dom/base/nsFrameLoader.cpp b/dom/base/nsFrameLoader.cpp
index 53262c63f4d9..3a54a033d665 100644
--- a/dom/base/nsFrameLoader.cpp
+++ b/dom/base/nsFrameLoader.cpp
@@ -667,7 +667,7 @@ nsresult nsFrameLoader::ReallyStartLoadingInternal() {
   mNeedsAsyncDestroy = true;
   loadState->SetLoadFlags(flags);
   loadState->SetFirstParty(false);
-  rv = GetDocShell()->LoadURI(loadState);
+  rv = GetDocShell()->LoadURI(loadState, false);
   mNeedsAsyncDestroy = tmpState;
   mURIToLoad = nullptr;
   NS_ENSURE_SUCCESS(rv, rv);
diff --git a/dom/clients/manager/ClientNavigateOpChild.cpp b/dom/clients/manager/ClientNavigateOpChild.cpp
index 797c784df81e..294afa3bb04b 100644
--- a/dom/clients/manager/ClientNavigateOpChild.cpp
+++ b/dom/clients/manager/ClientNavigateOpChild.cpp
@@ -238,7 +238,7 @@ RefPtr<ClientOpPromise> ClientNavigateOpChild::DoNavigate(
   loadState->SetSourceDocShell(docShell);
   loadState->SetLoadFlags(nsIWebNavigation::LOAD_FLAGS_NONE);
   loadState->SetFirstParty(true);
-  rv = docShell->LoadURI(loadState);
+  rv = docShell->LoadURI(loadState, false);
   if (NS_FAILED(rv)) {
     return ClientOpPromise::CreateAndReject(rv, __func__);
   }
diff --git a/dom/ipc/PWindowGlobal.ipdl b/dom/ipc/PWindowGlobal.ipdl
index 5ff8bcf6ed2e..40c4cfb0cb0b 100644
--- a/dom/ipc/PWindowGlobal.ipdl
+++ b/dom/ipc/PWindowGlobal.ipdl
@@ -53,7 +53,7 @@ child:
    */
   async GetSecurityInfo() returns(nsCString? serializedSecInfo);
 
-  async LoadURIInChild(nsDocShellLoadState aLoadState);
+  async LoadURIInChild(nsDocShellLoadState aLoadState, bool aSetNavigating);
 
 both:
   async RawMessage(JSWindowActorMessageMeta aMetadata, ClonedMessageData aData);
@@ -62,7 +62,7 @@ parent:
   // Load the given URI load state into the current owner process of the given
   // BrowsingContext. aTargetBC must be in the same BrowsingContextGroup as this
   // window global.
-  async LoadURI(BrowsingContext aTargetBC, nsDocShellLoadState aLoadState);
+  async LoadURI(BrowsingContext aTargetBC, nsDocShellLoadState aLoadState, bool aSetNavigating);
 
   /// Update the URI of the document in this WindowGlobal.
   async UpdateDocumentURI(nsIURI aUri);
diff --git a/dom/ipc/WindowGlobalChild.cpp b/dom/ipc/WindowGlobalChild.cpp
index 94aa12183483..d5cac31c37cd 100644
--- a/dom/ipc/WindowGlobalChild.cpp
+++ b/dom/ipc/WindowGlobalChild.cpp
@@ -234,8 +234,11 @@ void WindowGlobalChild::Destroy() {
 }
 
 mozilla::ipc::IPCResult WindowGlobalChild::RecvLoadURIInChild(
-    nsDocShellLoadState* aLoadState) {
-  mWindowGlobal->GetDocShell()->LoadURI(aLoadState);
+    nsDocShellLoadState* aLoadState, bool aSetNavigating) {
+  mWindowGlobal->GetDocShell()->LoadURI(aLoadState, aSetNavigating);
+  if (aSetNavigating) {
+    mWindowGlobal->GetBrowserChild()->NotifyNavigationFinished();
+  }
   return IPC_OK();
 }
 
diff --git a/dom/ipc/WindowGlobalChild.h b/dom/ipc/WindowGlobalChild.h
index a046f8a3d392..4dd89c68e896 100644
--- a/dom/ipc/WindowGlobalChild.h
+++ b/dom/ipc/WindowGlobalChild.h
@@ -114,7 +114,8 @@ class WindowGlobalChild final : public WindowGlobalActor,
   mozilla::ipc::IPCResult RecvRawMessage(const JSWindowActorMessageMeta& aMeta,
                                          const ClonedMessageData& aData);
 
-  mozilla::ipc::IPCResult RecvLoadURIInChild(nsDocShellLoadState* aLoadState);
+  mozilla::ipc::IPCResult RecvLoadURIInChild(nsDocShellLoadState* aLoadState,
+                                             bool aSetNavigating);
 
   mozilla::ipc::IPCResult RecvChangeFrameRemoteness(
       dom::BrowsingContext* aBc, const nsString& aRemoteType,
diff --git a/dom/ipc/WindowGlobalParent.cpp b/dom/ipc/WindowGlobalParent.cpp
index bd174e13388a..6546e4b1fdc3 100644
--- a/dom/ipc/WindowGlobalParent.cpp
+++ b/dom/ipc/WindowGlobalParent.cpp
@@ -175,7 +175,8 @@ bool WindowGlobalParent::IsProcessRoot() {
 }
 
 mozilla::ipc::IPCResult WindowGlobalParent::RecvLoadURI(
-    dom::BrowsingContext* aTargetBC, nsDocShellLoadState* aLoadState) {
+    dom::BrowsingContext* aTargetBC, nsDocShellLoadState* aLoadState,
+    bool aSetNavigating) {
   if (!aTargetBC || aTargetBC->IsDiscarded()) {
     MOZ_LOG(
         BrowsingContext::GetLog(), LogLevel::Debug,
@@ -200,7 +201,7 @@ mozilla::ipc::IPCResult WindowGlobalParent::RecvLoadURI(
     return IPC_OK();
   }
 
-  Unused << wgp->SendLoadURIInChild(aLoadState);
+  Unused << wgp->SendLoadURIInChild(aLoadState, aSetNavigating);
   return IPC_OK();
 }
 
diff --git a/dom/ipc/WindowGlobalParent.h b/dom/ipc/WindowGlobalParent.h
index 785521cc2545..a7e5c088ac03 100644
--- a/dom/ipc/WindowGlobalParent.h
+++ b/dom/ipc/WindowGlobalParent.h
@@ -140,7 +140,8 @@ class WindowGlobalParent final : public WindowGlobalActor,
 
   // IPC messages
   mozilla::ipc::IPCResult RecvLoadURI(dom::BrowsingContext* aTargetBC,
-                                      nsDocShellLoadState* aLoadState);
+                                      nsDocShellLoadState* aLoadState,
+                                      bool aSetNavigating);
   mozilla::ipc::IPCResult RecvUpdateDocumentURI(nsIURI* aURI);
   mozilla::ipc::IPCResult RecvSetIsInitialDocument(bool aIsInitialDocument) {
     mIsInitialDocument = aIsInitialDocument;