diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index d70bddfc4c9..277c02833d0 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -3890,6 +3890,11 @@ void Document::destroy()
         return task.document() == this;
     });
 
+    // AD-HOC: Mark this document as destroyed. This makes any tasks scheduled for this document in the
+    //         future immediately runnable instead of blocking on the document becoming fully active.
+    //         This is important because otherwise those tasks will get stuck in the task queue forever.
+    m_has_been_destroyed = true;
+
     // 8. Set document's browsing context to null.
     m_browsing_context = nullptr;
 
diff --git a/Libraries/LibWeb/DOM/Document.h b/Libraries/LibWeb/DOM/Document.h
index 017cb78c9e1..34fa966c385 100644
--- a/Libraries/LibWeb/DOM/Document.h
+++ b/Libraries/LibWeb/DOM/Document.h
@@ -560,6 +560,8 @@ public:
     Vector<GC::Root<HTML::Navigable>> inclusive_ancestor_navigables();
     Vector<GC::Root<HTML::Navigable>> document_tree_child_navigables();
 
+    [[nodiscard]] bool has_been_destroyed() const { return m_has_been_destroyed; }
+
     // https://html.spec.whatwg.org/multipage/document-lifecycle.html#destroy-a-document
     void destroy();
     // https://html.spec.whatwg.org/multipage/document-lifecycle.html#destroy-a-document-and-its-descendants
@@ -873,6 +875,8 @@ private:
     GC::Ptr<HTML::HTMLParser> m_parser;
     bool m_active_parser_was_aborted { false };
 
+    bool m_has_been_destroyed { false };
+
     String m_source;
 
     GC::Ptr<HTML::HTMLScriptElement> m_pending_parsing_blocking_script;
diff --git a/Libraries/LibWeb/HTML/EventLoop/Task.cpp b/Libraries/LibWeb/HTML/EventLoop/Task.cpp
index e71c2c81b46..a93f617074e 100644
--- a/Libraries/LibWeb/HTML/EventLoop/Task.cpp
+++ b/Libraries/LibWeb/HTML/EventLoop/Task.cpp
@@ -51,7 +51,15 @@ void Task::execute()
 bool Task::is_runnable() const
 {
     // A task is runnable if its document is either null or fully active.
-    return !m_document.ptr() || m_document->is_fully_active();
+    if (!m_document)
+        return true;
+
+    // AD-HOC: If the document has been destroyed, we'll consider the task runnable.
+    //         Otherwise it would get stuck here forever, since a destroyed document never becomes fully active again.
+    if (m_document->has_been_destroyed())
+        return true;
+
+    return m_document->is_fully_active();
 }
 
 DOM::Document const* Task::document() const