diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index 26db47233f99..083ad3752d3a 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -93,7 +93,7 @@ use net_traits::response::HttpsState;
 use net_traits::response::{Response, ResponseBody};
 use net_traits::storage_thread::StorageType;
 use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceFetchTiming, ResourceThreads};
-use parking_lot::RwLock;
+use parking_lot::{Mutex as ParkMutex, RwLock};
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
 use profile_traits::time::ProfilerChan as TimeProfilerChan;
 use script_layout_interface::message::PendingRestyle;
@@ -544,7 +544,7 @@ unsafe_no_jsmanaged_fields!(WebGLTextureId);
 unsafe_no_jsmanaged_fields!(WebGLVertexArrayId);
 unsafe_no_jsmanaged_fields!(WebGLVersion);
 unsafe_no_jsmanaged_fields!(WebGLSLVersion);
-unsafe_no_jsmanaged_fields!(Identities);
+unsafe_no_jsmanaged_fields!(Arc<ParkMutex<Identities>>);
 unsafe_no_jsmanaged_fields!(WebGPU);
 unsafe_no_jsmanaged_fields!(WebGPUAdapter);
 unsafe_no_jsmanaged_fields!(WebGPUBuffer);
diff --git a/components/script/dom/dedicatedworkerglobalscope.rs b/components/script/dom/dedicatedworkerglobalscope.rs
index a4970afcca43..bc956241dacd 100644
--- a/components/script/dom/dedicatedworkerglobalscope.rs
+++ b/components/script/dom/dedicatedworkerglobalscope.rs
@@ -22,6 +22,7 @@ use crate::dom::errorevent::ErrorEvent;
 use crate::dom::event::{Event, EventBubbles, EventCancelable, EventStatus};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::identityhub::Identities;
 use crate::dom::messageevent::MessageEvent;
 use crate::dom::worker::{TrustedWorkerAddress, Worker};
 use crate::dom::workerglobalscope::WorkerGlobalScope;
@@ -48,6 +49,7 @@ use net_traits::image_cache::ImageCache;
 use net_traits::request::{CredentialsMode, Destination, ParserMetadata};
 use net_traits::request::{Referrer, RequestBuilder, RequestMode};
 use net_traits::IpcSend;
+use parking_lot::Mutex;
 use script_traits::{WorkerGlobalScopeInit, WorkerScriptLoadOrigin};
 use servo_rand::random;
 use servo_url::ServoUrl;
@@ -223,6 +225,7 @@ impl DedicatedWorkerGlobalScope {
         closing: Arc<AtomicBool>,
         image_cache: Arc<dyn ImageCache>,
         browsing_context: Option<BrowsingContextId>,
+        gpu_id_hub: Arc<Mutex<Identities>>,
     ) -> DedicatedWorkerGlobalScope {
         DedicatedWorkerGlobalScope {
             workerglobalscope: WorkerGlobalScope::new_inherited(
@@ -233,6 +236,7 @@ impl DedicatedWorkerGlobalScope {
                 runtime,
                 from_devtools_receiver,
                 Some(closing),
+                gpu_id_hub,
             ),
             task_queue: TaskQueue::new(receiver, own_sender.clone()),
             own_sender: own_sender,
@@ -257,6 +261,7 @@ impl DedicatedWorkerGlobalScope {
         closing: Arc<AtomicBool>,
         image_cache: Arc<dyn ImageCache>,
         browsing_context: Option<BrowsingContextId>,
+        gpu_id_hub: Arc<Mutex<Identities>>,
     ) -> DomRoot<DedicatedWorkerGlobalScope> {
         let cx = runtime.cx();
         let scope = Box::new(DedicatedWorkerGlobalScope::new_inherited(
@@ -272,6 +277,7 @@ impl DedicatedWorkerGlobalScope {
             closing,
             image_cache,
             browsing_context,
+            gpu_id_hub,
         ));
         unsafe { DedicatedWorkerGlobalScopeBinding::Wrap(SafeJSContext::from_ptr(cx), scope) }
     }
@@ -292,6 +298,7 @@ impl DedicatedWorkerGlobalScope {
         closing: Arc<AtomicBool>,
         image_cache: Arc<dyn ImageCache>,
         browsing_context: Option<BrowsingContextId>,
+        gpu_id_hub: Arc<Mutex<Identities>>,
     ) {
         let serialized_worker_url = worker_url.to_string();
         let name = format!("WebWorker for {}", serialized_worker_url);
@@ -361,6 +368,7 @@ impl DedicatedWorkerGlobalScope {
                     closing,
                     image_cache,
                     browsing_context,
+                    gpu_id_hub,
                 );
                 // FIXME(njn): workers currently don't have a unique ID suitable for using in reporter
                 // registration (#6631), so we instead use a random number and cross our fingers.
diff --git a/components/script/dom/dissimilaroriginwindow.rs b/components/script/dom/dissimilaroriginwindow.rs
index ac866a90ff83..c00b08effe67 100644
--- a/components/script/dom/dissimilaroriginwindow.rs
+++ b/components/script/dom/dissimilaroriginwindow.rs
@@ -62,6 +62,7 @@ impl DissimilarOriginWindow {
                 global_to_clone_from.microtask_queue().clone(),
                 global_to_clone_from.is_headless(),
                 global_to_clone_from.get_user_agent(),
+                global_to_clone_from.wgpu_id_hub(),
             ),
             window_proxy: Dom::from_ref(window_proxy),
             location: Default::default(),
diff --git a/components/script/dom/globalscope.rs b/components/script/dom/globalscope.rs
index 4759524fb124..699f4b58ce4a 100644
--- a/components/script/dom/globalscope.rs
+++ b/components/script/dom/globalscope.rs
@@ -88,6 +88,7 @@ use net_traits::filemanager_thread::{
 };
 use net_traits::image_cache::ImageCache;
 use net_traits::{CoreResourceMsg, CoreResourceThread, IpcSend, ResourceThreads};
+use parking_lot::Mutex;
 use profile_traits::{ipc as profile_ipc, mem as profile_mem, time as profile_time};
 use script_traits::serializable::{BlobData, BlobImpl, FileBlob};
 use script_traits::transferable::MessagePortImpl;
@@ -98,7 +99,7 @@ use script_traits::{
 use script_traits::{TimerEventId, TimerSchedulerMsg, TimerSource};
 use servo_url::{MutableOrigin, ServoUrl};
 use std::borrow::Cow;
-use std::cell::{Cell, RefCell, RefMut};
+use std::cell::Cell;
 use std::collections::hash_map::Entry;
 use std::collections::{HashMap, VecDeque};
 use std::ffi::CString;
@@ -232,7 +233,7 @@ pub struct GlobalScope {
     user_agent: Cow<'static, str>,
 
     #[ignore_malloc_size_of = "defined in wgpu"]
-    gpu_id_hub: RefCell<Identities>,
+    gpu_id_hub: Arc<Mutex<Identities>>,
 
     // https://w3c.github.io/performance-timeline/#supportedentrytypes-attribute
     #[ignore_malloc_size_of = "mozjs"]
@@ -554,6 +555,7 @@ impl GlobalScope {
         microtask_queue: Rc<MicrotaskQueue>,
         is_headless: bool,
         user_agent: Cow<'static, str>,
+        gpu_id_hub: Arc<Mutex<Identities>>,
     ) -> Self {
         Self {
             message_port_state: DomRefCell::new(MessagePortState::UnManaged),
@@ -584,7 +586,7 @@ impl GlobalScope {
             consumed_rejections: Default::default(),
             is_headless,
             user_agent,
-            gpu_id_hub: RefCell::new(Identities::new()),
+            gpu_id_hub,
             frozen_supported_performance_entry_types: DomRefCell::new(Default::default()),
         }
     }
@@ -2510,8 +2512,8 @@ impl GlobalScope {
         None
     }
 
-    pub fn wgpu_id_hub(&self) -> RefMut<Identities> {
-        self.gpu_id_hub.borrow_mut()
+    pub fn wgpu_id_hub(&self) -> Arc<Mutex<Identities>> {
+        self.gpu_id_hub.clone()
     }
 }
 
diff --git a/components/script/dom/gpu.rs b/components/script/dom/gpu.rs
index 3980c2a3bd27..358665c3a10c 100644
--- a/components/script/dom/gpu.rs
+++ b/components/script/dom/gpu.rs
@@ -115,7 +115,7 @@ impl GPUMethods for GPU {
             },
             None => wgpu::instance::PowerPreference::Default,
         };
-        let ids = global.wgpu_id_hub().create_adapter_ids();
+        let ids = global.wgpu_id_hub().lock().create_adapter_ids();
 
         let script_to_constellation_chan = global.script_to_constellation_chan();
         if script_to_constellation_chan
diff --git a/components/script/dom/gpuadapter.rs b/components/script/dom/gpuadapter.rs
index 74a17130c692..93729ae5e22c 100644
--- a/components/script/dom/gpuadapter.rs
+++ b/components/script/dom/gpuadapter.rs
@@ -91,6 +91,7 @@ impl GPUAdapterMethods for GPUAdapter {
         let id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_device_id(self.adapter.0.backend());
         if self
             .channel
diff --git a/components/script/dom/gpudevice.rs b/components/script/dom/gpudevice.rs
index 571fde904fd6..29fe2cda39da 100644
--- a/components/script/dom/gpudevice.rs
+++ b/components/script/dom/gpudevice.rs
@@ -171,6 +171,7 @@ impl GPUDeviceMethods for GPUDevice {
         let id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_buffer_id(self.device.0.backend());
         self.channel
             .0
@@ -208,6 +209,7 @@ impl GPUDeviceMethods for GPUDevice {
         let buffer_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_buffer_id(self.device.0.backend());
         self.channel
             .0
@@ -393,6 +395,7 @@ impl GPUDeviceMethods for GPUDevice {
         let bind_group_layout_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_bind_group_layout_id(self.device.0.backend());
         self.channel
             .0
@@ -472,6 +475,7 @@ impl GPUDeviceMethods for GPUDevice {
         let pipeline_layout_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_pipeline_layout_id(self.device.0.backend());
         self.channel
             .0
@@ -532,6 +536,7 @@ impl GPUDeviceMethods for GPUDevice {
         let bind_group_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_bind_group_id(self.device.0.backend());
         self.channel
             .0
@@ -561,6 +566,7 @@ impl GPUDeviceMethods for GPUDevice {
         let program_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_shader_module_id(self.device.0.backend());
         self.channel
             .0
@@ -587,6 +593,7 @@ impl GPUDeviceMethods for GPUDevice {
         let compute_pipeline_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_compute_pipeline_id(self.device.0.backend());
         let (sender, receiver) = ipc::channel().unwrap();
         self.channel
@@ -613,6 +620,7 @@ impl GPUDeviceMethods for GPUDevice {
         let command_encoder_id = self
             .global()
             .wgpu_id_hub()
+            .lock()
             .create_command_encoder_id(self.device.0.backend());
         self.channel
             .0
diff --git a/components/script/dom/serviceworkerglobalscope.rs b/components/script/dom/serviceworkerglobalscope.rs
index 50fca827d02a..9699262a8742 100644
--- a/components/script/dom/serviceworkerglobalscope.rs
+++ b/components/script/dom/serviceworkerglobalscope.rs
@@ -18,6 +18,7 @@ use crate::dom::eventtarget::EventTarget;
 use crate::dom::extendableevent::ExtendableEvent;
 use crate::dom::extendablemessageevent::ExtendableMessageEvent;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::identityhub::Identities;
 use crate::dom::messageevent::MessageEvent;
 use crate::dom::worker::TrustedWorkerAddress;
 use crate::dom::workerglobalscope::WorkerGlobalScope;
@@ -38,10 +39,12 @@ use js::jsval::UndefinedValue;
 use msg::constellation_msg::PipelineId;
 use net_traits::request::{CredentialsMode, Destination, ParserMetadata, Referrer, RequestBuilder};
 use net_traits::{CustomResponseMediator, IpcSend};
+use parking_lot::Mutex;
 use script_traits::{ScopeThings, ServiceWorkerMsg, WorkerGlobalScopeInit, WorkerScriptLoadOrigin};
 use servo_config::pref;
 use servo_rand::random;
 use servo_url::ServoUrl;
+use std::sync::Arc;
 use std::thread;
 use std::time::{Duration, Instant};
 use style::thread_state::{self, ThreadState};
@@ -210,6 +213,7 @@ impl ServiceWorkerGlobalScope {
                 runtime,
                 from_devtools_receiver,
                 None,
+                Arc::new(Mutex::new(Identities::new())),
             ),
             task_queue: TaskQueue::new(receiver, own_sender.clone()),
             own_sender: own_sender,
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index ff189f2dc9be..73d3f163ec78 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -40,6 +40,7 @@ use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::hashchangeevent::HashChangeEvent;
 use crate::dom::history::History;
+use crate::dom::identityhub::Identities;
 use crate::dom::location::Location;
 use crate::dom::mediaquerylist::{MediaQueryList, MediaQueryListMatchState};
 use crate::dom::mediaquerylistevent::MediaQueryListEvent;
@@ -100,6 +101,7 @@ use net_traits::image_cache::{PendingImageId, PendingImageResponse};
 use net_traits::storage_thread::StorageType;
 use net_traits::ResourceThreads;
 use num_traits::ToPrimitive;
+use parking_lot::Mutex as ParkMutex;
 use profile_traits::ipc as ProfiledIpc;
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
 use profile_traits::time::{ProfilerChan as TimeProfilerChan, ProfilerMsg};
@@ -2322,6 +2324,7 @@ impl Window {
         user_agent: Cow<'static, str>,
         player_context: WindowGLContext,
         event_loop_waker: Option<Box<dyn EventLoopWaker>>,
+        gpu_id_hub: Arc<ParkMutex<Identities>>,
     ) -> DomRoot<Self> {
         let layout_rpc: Box<dyn LayoutRPC + Send> = {
             let (rpc_send, rpc_recv) = unbounded();
@@ -2345,6 +2348,7 @@ impl Window {
                 microtask_queue,
                 is_headless,
                 user_agent,
+                gpu_id_hub,
             ),
             script_chan,
             task_manager,
diff --git a/components/script/dom/worker.rs b/components/script/dom/worker.rs
index c9555c88517e..ac865a0cf94d 100644
--- a/components/script/dom/worker.rs
+++ b/components/script/dom/worker.rs
@@ -139,6 +139,7 @@ impl Worker {
             closing,
             global.image_cache(),
             browsing_context,
+            global.wgpu_id_hub(),
         );
 
         Ok(worker)
diff --git a/components/script/dom/workerglobalscope.rs b/components/script/dom/workerglobalscope.rs
index bcc3f5dad15b..6e9490cb2c75 100644
--- a/components/script/dom/workerglobalscope.rs
+++ b/components/script/dom/workerglobalscope.rs
@@ -21,6 +21,7 @@ use crate::dom::bindings::trace::RootedTraceableBox;
 use crate::dom::crypto::Crypto;
 use crate::dom::dedicatedworkerglobalscope::DedicatedWorkerGlobalScope;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::identityhub::Identities;
 use crate::dom::performance::Performance;
 use crate::dom::promise::Promise;
 use crate::dom::serviceworkerglobalscope::ServiceWorkerGlobalScope;
@@ -53,6 +54,7 @@ use net_traits::request::{
     CredentialsMode, Destination, ParserMetadata, RequestBuilder as NetRequestInit,
 };
 use net_traits::IpcSend;
+use parking_lot::Mutex;
 use script_traits::WorkerGlobalScopeInit;
 use servo_url::{MutableOrigin, ServoUrl};
 use std::default::Default;
@@ -125,6 +127,7 @@ impl WorkerGlobalScope {
         runtime: Runtime,
         from_devtools_receiver: Receiver<DevtoolScriptControlMsg>,
         closing: Option<Arc<AtomicBool>>,
+        gpu_id_hub: Arc<Mutex<Identities>>,
     ) -> Self {
         // Install a pipeline-namespace in the current thread.
         PipelineNamespace::auto_install();
@@ -141,6 +144,7 @@ impl WorkerGlobalScope {
                 runtime.microtask_queue.clone(),
                 init.is_headless,
                 init.user_agent,
+                gpu_id_hub,
             ),
             worker_id: init.worker_id,
             worker_name,
diff --git a/components/script/dom/workletglobalscope.rs b/components/script/dom/workletglobalscope.rs
index 995014cfc1af..ed009d304280 100644
--- a/components/script/dom/workletglobalscope.rs
+++ b/components/script/dom/workletglobalscope.rs
@@ -5,6 +5,7 @@
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
+use crate::dom::identityhub::Identities;
 use crate::dom::paintworkletglobalscope::PaintWorkletGlobalScope;
 use crate::dom::paintworkletglobalscope::PaintWorkletTask;
 use crate::dom::testworkletglobalscope::TestWorkletGlobalScope;
@@ -21,6 +22,7 @@ use js::rust::Runtime;
 use msg::constellation_msg::PipelineId;
 use net_traits::image_cache::ImageCache;
 use net_traits::ResourceThreads;
+use parking_lot::Mutex;
 use profile_traits::mem;
 use profile_traits::time;
 use script_traits::{Painter, ScriptMsg};
@@ -71,6 +73,7 @@ impl WorkletGlobalScope {
                 Default::default(),
                 init.is_headless,
                 init.user_agent.clone(),
+                init.gpu_id_hub.clone(),
             ),
             base_url,
             to_script_thread_sender: init.to_script_thread_sender.clone(),
@@ -156,6 +159,8 @@ pub struct WorkletGlobalScopeInit {
     pub is_headless: bool,
     /// An optional string allowing the user agent to be set for testing
     pub user_agent: Cow<'static, str>,
+    /// Channel to WebGPU
+    pub gpu_id_hub: Arc<Mutex<Identities>>,
 }
 
 /// <https://drafts.css-houdini.org/worklets/#worklet-global-scope-type>
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index fb216e614bab..6a2c4b09c1e3 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -55,6 +55,7 @@ use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlanchorelement::HTMLAnchorElement;
 use crate::dom::htmliframeelement::{HTMLIFrameElement, NavigationType};
+use crate::dom::identityhub::Identities;
 use crate::dom::mutationobserver::MutationObserver;
 use crate::dom::node::{
     from_untrusted_node_address, window_from_node, Node, NodeDamage, ShadowIncluding,
@@ -129,6 +130,7 @@ use net_traits::{
     Metadata, NetworkError, ReferrerPolicy, ResourceFetchTiming, ResourceThreads,
     ResourceTimingType,
 };
+use parking_lot::Mutex;
 use percent_encoding::percent_decode;
 use profile_traits::mem::{self as profile_mem, OpaqueSender, ReportsChan};
 use profile_traits::time::{self as profile_time, profile, ProfilerCategory};
@@ -698,6 +700,9 @@ pub struct ScriptThread {
 
     /// Code is running as a consequence of a user interaction
     is_user_interacting: Cell<bool>,
+
+    /// Channel to WebGPU
+    gpu_id_hub: Arc<Mutex<Identities>>,
 }
 
 /// In the event of thread panic, all data on the stack runs its destructor. However, there
@@ -1151,6 +1156,7 @@ impl ScriptThread {
                         image_cache: script_thread.image_cache.clone(),
                         is_headless: script_thread.headless,
                         user_agent: script_thread.user_agent.clone(),
+                        gpu_id_hub: script_thread.gpu_id_hub.clone(),
                     };
                     Rc::new(WorkletThreadPool::spawn(init))
                 })
@@ -1396,6 +1402,7 @@ impl ScriptThread {
 
             node_ids: Default::default(),
             is_user_interacting: Cell::new(false),
+            gpu_id_hub: Arc::new(Mutex::new(Identities::new())),
         }
     }
 
@@ -3313,6 +3320,7 @@ impl ScriptThread {
             self.user_agent.clone(),
             self.player_context.clone(),
             self.event_loop_waker.as_ref().map(|w| (*w).clone_box()),
+            self.gpu_id_hub.clone(),
         );
 
         // Initialize the browsing context for the window.