diff --git a/Userland/Libraries/LibJS/Heap/Cell.h b/Userland/Libraries/LibJS/Heap/Cell.h
index 4e6701e6ca..c7f4a7c645 100644
--- a/Userland/Libraries/LibJS/Heap/Cell.h
+++ b/Userland/Libraries/LibJS/Heap/Cell.h
@@ -24,18 +24,9 @@ public:
     bool is_marked() const { return m_mark; }
     void set_marked(bool b) { m_mark = b; }
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie()
-    {
-    }
-#endif
-
     enum class State {
         Live,
         Dead,
-#ifdef JS_TRACK_ZOMBIE_CELLS
-        Zombie,
-#endif
     };
 
     State state() const { return m_state; }
diff --git a/Userland/Libraries/LibJS/Heap/Heap.cpp b/Userland/Libraries/LibJS/Heap/Heap.cpp
index cf792ba04a..3fd89637c5 100644
--- a/Userland/Libraries/LibJS/Heap/Heap.cpp
+++ b/Userland/Libraries/LibJS/Heap/Heap.cpp
@@ -190,14 +190,6 @@ public:
             return;
         dbgln_if(HEAP_DEBUG, "  ! {}", &cell);
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-        if (cell.state() == Cell::State::Zombie) {
-            dbgln("BUG! Marking a zombie cell, {} @ {:p}", cell.class_name(), &cell);
-            cell.vm().dump_backtrace();
-            VERIFY_NOT_REACHED();
-        }
-#endif
-
         cell.set_marked(true);
         cell.visit_edges(*this);
     }
@@ -234,16 +226,7 @@ void Heap::sweep_dead_cells(bool print_report, const Core::ElapsedTimer& measure
         block.template for_each_cell_in_state<Cell::State::Live>([&](Cell* cell) {
             if (!cell->is_marked()) {
                 dbgln_if(HEAP_DEBUG, "  ~ {}", cell);
-#ifdef JS_TRACK_ZOMBIE_CELLS
-                if (m_zombify_dead_cells) {
-                    cell->set_state(Cell::State::Zombie);
-                    cell->did_become_zombie();
-                } else {
-#endif
-                    block.deallocate(cell);
-#ifdef JS_TRACK_ZOMBIE_CELLS
-                }
-#endif
+                block.deallocate(cell);
                 ++collected_cells;
                 collected_cell_bytes += block.cell_size();
             } else {
diff --git a/Userland/Libraries/LibJS/Heap/Heap.h b/Userland/Libraries/LibJS/Heap/Heap.h
index 6b2deb7335..ddb189581e 100644
--- a/Userland/Libraries/LibJS/Heap/Heap.h
+++ b/Userland/Libraries/LibJS/Heap/Heap.h
@@ -63,13 +63,6 @@ public:
     bool should_collect_on_every_allocation() const { return m_should_collect_on_every_allocation; }
     void set_should_collect_on_every_allocation(bool b) { m_should_collect_on_every_allocation = b; }
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    void set_zombify_dead_cells(bool b)
-    {
-        m_zombify_dead_cells = b;
-    }
-#endif
-
     void did_create_handle(Badge<HandleImpl>, HandleImpl&);
     void did_destroy_handle(Badge<HandleImpl>, HandleImpl&);
 
@@ -132,10 +125,6 @@ private:
     bool m_should_gc_when_deferral_ends { false };
 
     bool m_collecting_garbage { false };
-
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    bool m_zombify_dead_cells { false };
-#endif
 };
 
 }
diff --git a/Userland/Libraries/LibJS/Runtime/FinalizationRegistry.h b/Userland/Libraries/LibJS/Runtime/FinalizationRegistry.h
index 9fca911f34..53f008f51e 100644
--- a/Userland/Libraries/LibJS/Runtime/FinalizationRegistry.h
+++ b/Userland/Libraries/LibJS/Runtime/FinalizationRegistry.h
@@ -35,13 +35,6 @@ public:
 private:
     virtual void visit_edges(Visitor& visitor) override;
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override
-    {
-        deregister();
-    }
-#endif
-
     FunctionObject* m_cleanup_callback { nullptr };
 
     struct FinalizationRecord {
diff --git a/Userland/Libraries/LibJS/Runtime/Shape.cpp b/Userland/Libraries/LibJS/Runtime/Shape.cpp
index 0b0f2f96b7..b7e51fc9e3 100644
--- a/Userland/Libraries/LibJS/Runtime/Shape.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Shape.cpp
@@ -247,11 +247,4 @@ FLATTEN void Shape::add_property_without_transition(PropertyKey const& property_
     add_property_without_transition(property_name.to_string_or_symbol(), attributes);
 }
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-void Shape::did_become_zombie()
-{
-    revoke_weak_ptrs();
-}
-#endif
-
 }
diff --git a/Userland/Libraries/LibJS/Runtime/Shape.h b/Userland/Libraries/LibJS/Runtime/Shape.h
index b2712880c5..4691e33070 100644
--- a/Userland/Libraries/LibJS/Runtime/Shape.h
+++ b/Userland/Libraries/LibJS/Runtime/Shape.h
@@ -89,10 +89,6 @@ private:
     virtual const char* class_name() const override { return "Shape"; }
     virtual void visit_edges(Visitor&) override;
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override;
-#endif
-
     Shape* get_or_prune_cached_forward_transition(TransitionKey const&);
     Shape* get_or_prune_cached_prototype_transition(Object* prototype);
 
diff --git a/Userland/Libraries/LibJS/Runtime/WeakMap.h b/Userland/Libraries/LibJS/Runtime/WeakMap.h
index 0d96638157..27872c6dfd 100644
--- a/Userland/Libraries/LibJS/Runtime/WeakMap.h
+++ b/Userland/Libraries/LibJS/Runtime/WeakMap.h
@@ -30,13 +30,6 @@ public:
     virtual void remove_dead_cells(Badge<Heap>) override;
 
 private:
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override
-    {
-        deregister();
-    }
-#endif
-
     void visit_edges(Visitor&) override;
 
     HashMap<Cell*, Value> m_values; // This stores Cell pointers instead of Object pointers to aide with sweeping
diff --git a/Userland/Libraries/LibJS/Runtime/WeakRef.h b/Userland/Libraries/LibJS/Runtime/WeakRef.h
index 8bc2b9ad30..35be9d8e32 100644
--- a/Userland/Libraries/LibJS/Runtime/WeakRef.h
+++ b/Userland/Libraries/LibJS/Runtime/WeakRef.h
@@ -32,13 +32,6 @@ public:
 private:
     virtual void visit_edges(Visitor&) override;
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override
-    {
-        deregister();
-    }
-#endif
-
     Object* m_value { nullptr };
     u32 m_last_execution_generation { 0 };
 };
diff --git a/Userland/Libraries/LibJS/Runtime/WeakSet.h b/Userland/Libraries/LibJS/Runtime/WeakSet.h
index 6d777cb97c..eaa9e6cda0 100644
--- a/Userland/Libraries/LibJS/Runtime/WeakSet.h
+++ b/Userland/Libraries/LibJS/Runtime/WeakSet.h
@@ -30,13 +30,6 @@ public:
     virtual void remove_dead_cells(Badge<Heap>) override;
 
 private:
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override
-    {
-        deregister();
-    }
-#endif
-
     HashTable<Cell*> m_values; // This stores Cell pointers instead of Object pointers to aide with sweeping
 };
 
diff --git a/Userland/Libraries/LibTest/JavaScriptTestRunner.h b/Userland/Libraries/LibTest/JavaScriptTestRunner.h
index 6dff4cb26d..f126409ca9 100644
--- a/Userland/Libraries/LibTest/JavaScriptTestRunner.h
+++ b/Userland/Libraries/LibTest/JavaScriptTestRunner.h
@@ -116,9 +116,6 @@ static consteval size_t __testjs_last()
 static constexpr auto TOP_LEVEL_TEST_NAME = "__$$TOP_LEVEL$$__";
 extern RefPtr<JS::VM> g_vm;
 extern bool g_collect_on_every_allocation;
-#ifdef JS_TRACK_ZOMBIE_CELLS
-extern bool g_zombify_dead_cells;
-#endif
 extern bool g_run_bytecode;
 extern String g_currently_running_test;
 struct FunctionWithLength {
@@ -291,10 +288,6 @@ inline JSFileResult TestRunner::run_file_test(const String& test_path)
 
     interpreter->heap().set_should_collect_on_every_allocation(g_collect_on_every_allocation);
 
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    interpreter->heap().set_zombify_dead_cells(g_zombify_dead_cells);
-#endif
-
     if (g_run_file) {
         auto result = g_run_file(test_path, *interpreter);
         if (result.is_error() && result.error() == RunFileHookResult::SkipFile) {
diff --git a/Userland/Libraries/LibTest/JavaScriptTestRunnerMain.cpp b/Userland/Libraries/LibTest/JavaScriptTestRunnerMain.cpp
index a4aa7f7e44..0910486bb2 100644
--- a/Userland/Libraries/LibTest/JavaScriptTestRunnerMain.cpp
+++ b/Userland/Libraries/LibTest/JavaScriptTestRunnerMain.cpp
@@ -19,9 +19,6 @@ namespace JS {
 
 RefPtr<::JS::VM> g_vm;
 bool g_collect_on_every_allocation = false;
-#ifdef JS_TRACK_ZOMBIE_CELLS
-bool g_zombify_dead_cells = false;
-#endif
 bool g_run_bytecode = false;
 String g_currently_running_test;
 HashMap<String, FunctionWithLength> s_exposed_global_functions;
@@ -112,9 +109,6 @@ int main(int argc, char** argv)
     });
     args_parser.add_option(print_json, "Show results as JSON", "json", 'j');
     args_parser.add_option(g_collect_on_every_allocation, "Collect garbage after every allocation", "collect-often", 'g');
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    args_parser.add_option(g_zombify_dead_cells, "Zombify dead cells (to catch missing GC marks)", "zombify-dead-cells", 'z');
-#endif
     args_parser.add_option(g_run_bytecode, "Use the bytecode interpreter", "run-bytecode", 'b');
     args_parser.add_option(JS::Bytecode::g_dump_bytecode, "Dump the bytecode", "dump-bytecode", 'd');
     args_parser.add_option(test_glob, "Only run tests matching the given glob", "filter", 'f', "glob");
diff --git a/Userland/Libraries/LibWeb/Bindings/Wrapper.h b/Userland/Libraries/LibWeb/Bindings/Wrapper.h
index 11da182ea6..2ac7c4851c 100644
--- a/Userland/Libraries/LibWeb/Bindings/Wrapper.h
+++ b/Userland/Libraries/LibWeb/Bindings/Wrapper.h
@@ -24,13 +24,6 @@ protected:
         : Object(prototype)
     {
     }
-
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    virtual void did_become_zombie() override
-    {
-        revoke_weak_ptrs();
-    }
-#endif
 };
 
 }
diff --git a/Userland/Utilities/js.cpp b/Userland/Utilities/js.cpp
index f2d99ac71b..3b98ceeb12 100644
--- a/Userland/Utilities/js.cpp
+++ b/Userland/Utilities/js.cpp
@@ -1370,10 +1370,6 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     args_parser.add_option(s_strip_ansi, "Disable ANSI colors", "disable-ansi-colors", 'c');
     args_parser.add_option(s_disable_source_location_hints, "Disable source location hints", "disable-source-location-hints", 'h');
     args_parser.add_option(gc_on_every_allocation, "GC on every allocation", "gc-on-every-allocation", 'g');
-#ifdef JS_TRACK_ZOMBIE_CELLS
-    bool zombify_dead_cells = false;
-    args_parser.add_option(zombify_dead_cells, "Zombify dead cells (to catch missing GC marks)", "zombify-dead-cells", 'z');
-#endif
     args_parser.add_option(disable_syntax_highlight, "Disable live syntax highlighting", "no-syntax-highlight", 's');
     args_parser.add_positional_argument(script_paths, "Path to script files", "scripts", Core::ArgsParser::Required::No);
     args_parser.parse(arguments);
@@ -1416,9 +1412,6 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         ReplConsoleClient console_client(interpreter->global_object().console());
         interpreter->global_object().console().set_client(console_client);
         interpreter->heap().set_should_collect_on_every_allocation(gc_on_every_allocation);
-#ifdef JS_TRACK_ZOMBIE_CELLS
-        interpreter->heap().set_zombify_dead_cells(zombify_dead_cells);
-#endif
 
         auto& global_environment = interpreter->realm().global_environment();
 
@@ -1630,9 +1623,6 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
         ReplConsoleClient console_client(interpreter->global_object().console());
         interpreter->global_object().console().set_client(console_client);
         interpreter->heap().set_should_collect_on_every_allocation(gc_on_every_allocation);
-#ifdef JS_TRACK_ZOMBIE_CELLS
-        interpreter->heap().set_zombify_dead_cells(zombify_dead_cells);
-#endif
 
         signal(SIGINT, [](int) {
             sigint_handler();