diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp
index 43e54a69d8a6..2da821ce6afd 100644
--- a/docshell/base/nsDocShell.cpp
+++ b/docshell/base/nsDocShell.cpp
@@ -13358,6 +13358,7 @@ public:
                    int64_t aPostDataStreamLength,
                    nsIInputStream* aHeadersDataStream,
                    bool aNoOpenerImplied,
+                   bool aIsUserTriggered,
                    bool aIsTrusted,
                    nsIPrincipal* aTriggeringPrincipal);
 
@@ -13376,7 +13377,8 @@ public:
                                 mTargetSpec.get(), mFileName,
                                 mPostDataStream, mPostDataStreamLength,
                                 mHeadersDataStream, mNoOpenerImplied,
-                                nullptr, nullptr, mTriggeringPrincipal);
+                                nullptr, nullptr, mIsUserTriggered,
+                                mTriggeringPrincipal);
     }
     return NS_OK;
   }
@@ -13392,6 +13394,7 @@ private:
   nsCOMPtr<nsIContent> mContent;
   PopupControlState mPopupState;
   bool mNoOpenerImplied;
+  bool mIsUserTriggered;
   bool mIsTrusted;
   nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
 };
@@ -13405,6 +13408,7 @@ OnLinkClickEvent::OnLinkClickEvent(nsDocShell* aHandler,
                                    int64_t aPostDataStreamLength,
                                    nsIInputStream* aHeadersDataStream,
                                    bool aNoOpenerImplied,
+                                   bool aIsUserTriggered,
                                    bool aIsTrusted,
                                    nsIPrincipal* aTriggeringPrincipal)
   : mozilla::Runnable("OnLinkClickEvent")
@@ -13418,6 +13422,7 @@ OnLinkClickEvent::OnLinkClickEvent(nsDocShell* aHandler,
   , mContent(aContent)
   , mPopupState(mHandler->mScriptGlobal->GetPopupControlState())
   , mNoOpenerImplied(aNoOpenerImplied)
+  , mIsUserTriggered(aIsUserTriggered)
   , mIsTrusted(aIsTrusted)
   , mTriggeringPrincipal(aTriggeringPrincipal)
 {
@@ -13431,6 +13436,7 @@ nsDocShell::OnLinkClick(nsIContent* aContent,
                         nsIInputStream* aPostDataStream,
                         int64_t aPostDataStreamLength,
                         nsIInputStream* aHeadersDataStream,
+                        bool aIsUserTriggered,
                         bool aIsTrusted,
                         nsIPrincipal* aTriggeringPrincipal)
 {
@@ -13477,7 +13483,7 @@ nsDocShell::OnLinkClick(nsIContent* aContent,
     new OnLinkClickEvent(this, aContent, aURI, target.get(), aFileName,
                          aPostDataStream, aPostDataStreamLength,
                          aHeadersDataStream, noOpenerImplied,
-                         aIsTrusted, aTriggeringPrincipal);
+                         aIsUserTriggered, aIsTrusted, aTriggeringPrincipal);
   return DispatchToTabGroup(TaskCategory::UI, ev.forget());
 }
 
@@ -13500,6 +13506,7 @@ nsDocShell::OnLinkClickSync(nsIContent* aContent,
                             bool aNoOpenerImplied,
                             nsIDocShell** aDocShell,
                             nsIRequest** aRequest,
+                            bool aIsUserTriggered,
                             nsIPrincipal* aTriggeringPrincipal)
 {
   // Initialize the DocShell / Request
@@ -13638,6 +13645,10 @@ nsDocShell::OnLinkClickSync(nsIContent* aContent,
   GetIsExecutingOnLoadHandler(&inOnLoadHandler);
   uint32_t loadType = inOnLoadHandler ? LOAD_NORMAL_REPLACE : LOAD_LINK;
 
+  if (aIsUserTriggered) {
+    flags |= INTERNAL_LOAD_FLAGS_IS_USER_TRIGGERED;
+  }
+
   nsresult rv = InternalLoad(clonedURI,                 // New URI
                              nullptr,                   // Original URI
                              Nothing(),                 // Let the protocol handler assign it
diff --git a/docshell/base/nsDocShell.h b/docshell/base/nsDocShell.h
index 7ff0f7040d7b..6e6c26156ea8 100644
--- a/docshell/base/nsDocShell.h
+++ b/docshell/base/nsDocShell.h
@@ -210,6 +210,7 @@ public:
                          nsIInputStream* aPostDataStream,
                          int64_t aPostDataStreamLength,
                          nsIInputStream* aHeadersDataStream,
+                         bool aIsUserTriggered,
                          bool aIsTrusted,
                          nsIPrincipal* aTriggeringPrincipal) override;
   NS_IMETHOD OnLinkClickSync(nsIContent* aContent,
@@ -222,6 +223,7 @@ public:
                              bool aNoOpenerImplied = false,
                              nsIDocShell** aDocShell = 0,
                              nsIRequest** aRequest = 0,
+                             bool aIsUserTriggered = false,
                              nsIPrincipal* aTriggeringPrincipal = nullptr) override;
   NS_IMETHOD OnOverLink(nsIContent* aContent,
                         nsIURI* aURI,
diff --git a/docshell/base/nsIDocShell.idl b/docshell/base/nsIDocShell.idl
index 4c3035c3ae9b..f02ef43cb582 100644
--- a/docshell/base/nsIDocShell.idl
+++ b/docshell/base/nsIDocShell.idl
@@ -139,6 +139,9 @@ interface nsIDocShell : nsIDocShellTreeItem
   // Whether a top-level data URI navigation is allowed for that load
   const long INTERNAL_LOAD_FLAGS_FORCE_ALLOW_DATA_URI    = 0x200;
 
+  // Whether the load was triggered by user interaction.
+  const long INTERNAL_LOAD_FLAGS_IS_USER_TRIGGERED       = 0x1000;
+
   /**
    * Loads the given URI.  This method is identical to loadURI(...) except
    * that its parameter list is broken out instead of being packaged inside
diff --git a/docshell/base/nsILinkHandler.h b/docshell/base/nsILinkHandler.h
index d28f0b487fb4..eaed03452467 100644
--- a/docshell/base/nsILinkHandler.h
+++ b/docshell/base/nsILinkHandler.h
@@ -49,6 +49,7 @@ public:
                          nsIInputStream* aPostDataStream,
                          int64_t aPostDataStreamLength,
                          nsIInputStream* aHeadersDataStream,
+                         bool aIsUserTriggered,
                          bool aIsTrusted,
                          nsIPrincipal* aTriggeringPrincipal) = 0;
 
@@ -82,6 +83,7 @@ public:
                              bool aNoOpenerImplied = false,
                              nsIDocShell** aDocShell = 0,
                              nsIRequest** aRequest = 0,
+                             bool aIsUserTriggered = false,
                              nsIPrincipal* aTriggeringPrincipal = nullptr) = 0;
 
   /**
diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index 832816ca5390..39cdba0dace4 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -5544,8 +5544,8 @@ nsContentUtils::TriggerLink(nsIContent *aContent, nsPresContext *aPresContext,
 
     handler->OnLinkClick(aContent, aLinkURI,
                          fileName.IsVoid() ? aTargetSpec.get() : EmptyString().get(),
-                         fileName, nullptr, -1, nullptr, aIsTrusted,
-                         aContent->NodePrincipal());
+                         fileName, nullptr, -1, nullptr, EventStateManager::IsHandlingUserInput(),
+                         aIsTrusted, aContent->NodePrincipal());
   }
 }
 
diff --git a/dom/html/HTMLFormElement.cpp b/dom/html/HTMLFormElement.cpp
index ed56f278448d..2874e596874b 100644
--- a/dom/html/HTMLFormElement.cpp
+++ b/dom/html/HTMLFormElement.cpp
@@ -784,7 +784,8 @@ HTMLFormElement::SubmitSubmission(HTMLFormSubmission* aFormSubmission)
                                       postDataStream, postDataStreamLength,
                                       nullptr, false,
                                       getter_AddRefs(docShell),
-                                      getter_AddRefs(mSubmittingRequest));
+                                      getter_AddRefs(mSubmittingRequest),
+                                      EventStateManager::IsHandlingUserInput());
     NS_ENSURE_SUBMIT_SUCCESS(rv);
   }
 
diff --git a/dom/plugins/base/nsPluginInstanceOwner.cpp b/dom/plugins/base/nsPluginInstanceOwner.cpp
index e4fd3774cb7b..044d887594ca 100644
--- a/dom/plugins/base/nsPluginInstanceOwner.cpp
+++ b/dom/plugins/base/nsPluginInstanceOwner.cpp
@@ -485,7 +485,9 @@ NS_IMETHODIMP nsPluginInstanceOwner::GetURL(const char *aURL,
   }
 
   rv = lh->OnLinkClick(content, uri, unitarget.get(), VoidString(),
-                       aPostStream, -1, headersDataStream, true, triggeringPrincipal);
+                       aPostStream, -1, headersDataStream,
+                       /* isUserTriggered */ false,
+                       /* isTrusted */ true, triggeringPrincipal);
 
   return rv;
 }