diff --git a/Cargo.toml b/Cargo.toml
index cd04c81..4db9245 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -258,7 +258,7 @@ opt-level = 3
 inherits = "release"
 lto = true
 codegen-units = 1
-opt-level = 3 
+opt-level = 3
 
 [profile.production-stripped]
 inherits = "production"
diff --git a/forkme.lock b/forkme.lock
index 58b6092..780d62c 100644
--- a/forkme.lock
+++ b/forkme.lock
@@ -1 +1 @@
-217d76c83dc63f5ff91afcb80479ed638b6dce6e
+b590c6c8487d3d682005a6b3469124909103d4d0
diff --git a/patches/components/constellation/constellation.rs.patch b/patches/components/constellation/constellation.rs.patch
index 60d0a5a..6457a55 100644
--- a/patches/components/constellation/constellation.rs.patch
+++ b/patches/components/constellation/constellation.rs.patch
@@ -184,9 +184,9 @@
              ScriptToConstellationMessage::MediaSessionEvent(pipeline_id, event) => {
                  // Unlikely at this point, but we may receive events coming from
                  // different media sessions, so we set the active media session based
-@@ -2052,6 +2130,129 @@
-             ScriptToConstellationMessage::RespondToScreenshotReadinessRequest(response) => {
-                 self.handle_screenshot_readiness_response(source_pipeline_id, response);
+@@ -2057,6 +2135,129 @@
+                     let _ = event_loop.send(ScriptThreadMessage::TriggerGarbageCollection);
+                 }
              },
 +            ScriptToConstellationMessage::EmbeddedWebViewNotification(event) => {
 +                self.handle_embedded_webview_notification(webview_id, event);
@@ -314,7 +314,7 @@
          }
      }
 
-@@ -3164,6 +3365,13 @@
+@@ -3169,6 +3370,13 @@
      /// <https://html.spec.whatwg.org/multipage/#destroy-a-top-level-traversable>
      fn handle_close_top_level_browsing_context(&mut self, webview_id: WebViewId) {
          debug!("{webview_id}: Closing");
@@ -328,7 +328,7 @@
          let browsing_context_id = BrowsingContextId::from(webview_id);
          // Step 5. Remove traversable from the user agent's top-level traversable set.
          let browsing_context =
-@@ -3440,8 +3648,27 @@
+@@ -3445,8 +3653,27 @@
              opener_webview_id,
              opener_pipeline_id,
              response_sender,
@@ -356,7 +356,7 @@
          let Some((webview_id_sender, webview_id_receiver)) = generic_channel::channel() else {
              warn!("Failed to create channel");
              let _ = response_sender.send(None);
-@@ -3539,6 +3766,359 @@
+@@ -3544,6 +3771,359 @@
          });
      }
 
@@ -716,7 +716,7 @@
      #[servo_tracing::instrument(skip_all)]
      fn handle_refresh_cursor(&self, pipeline_id: PipelineId) {
          let Some(pipeline) = self.pipelines.get(&pipeline_id) else {
-@@ -4665,7 +5245,7 @@
+@@ -4670,7 +5250,7 @@
      }
 
      #[servo_tracing::instrument(skip_all)]
@@ -725,7 +725,7 @@
          // Send a flat projection of the history to embedder.
          // The final vector is a concatenation of the URLs of the past
          // entries, the current entry and the future entries.
-@@ -4768,9 +5348,23 @@
+@@ -4773,9 +5353,23 @@
          );
          self.embedder_proxy.send(EmbedderMsg::HistoryChanged(
              webview_id,
diff --git a/patches/components/constellation/tracing.rs.patch b/patches/components/constellation/tracing.rs.patch
index 03606f9..4b2d50b 100644
--- a/patches/components/constellation/tracing.rs.patch
+++ b/patches/components/constellation/tracing.rs.patch
@@ -36,10 +36,10 @@
                  Self::ActivateDocument => target!("ActivateDocument"),
                  Self::SetDocumentState(..) => target!("SetDocumentState"),
                  Self::SetFinalUrl(..) => target!("SetFinalUrl"),
-@@ -185,6 +193,35 @@
-                 Self::RespondToScreenshotReadinessRequest(..) => {
+@@ -186,6 +194,35 @@
                      target!("RespondToScreenshotReadinessRequest")
                  },
+                 Self::TriggerGarbageCollection => target!("TriggerGarbageCollection"),
 +                Self::EmbeddedWebViewNotification(..) => {
 +                    target!("EmbeddedWebViewNotification")
 +                },
diff --git a/patches/components/script/dom/debuggerglobalscope.rs.patch b/patches/components/script/dom/debuggerglobalscope.rs.patch
index c25f67b..1ac6d40 100644
--- a/patches/components/script/dom/debuggerglobalscope.rs.patch
+++ b/patches/components/script/dom/debuggerglobalscope.rs.patch
@@ -1,6 +1,6 @@
 --- original
 +++ modified
-@@ -102,9 +102,11 @@
+@@ -101,9 +101,11 @@
                  None,
                  #[cfg(feature = "webgpu")]
                  gpu_id_hub,
diff --git a/patches/components/script/dom/globalscope.rs.patch b/patches/components/script/dom/globalscope.rs.patch
index ea7a0ce..f13026f 100644
--- a/patches/components/script/dom/globalscope.rs.patch
+++ b/patches/components/script/dom/globalscope.rs.patch
@@ -35,7 +35,7 @@
              unminified_js_dir: unminify_js.then(|| unminified_path("unminified-js")),
              byte_length_queuing_strategy_size_function: OnceCell::new(),
              count_queuing_strategy_size_function: OnceCell::new(),
-@@ -3101,6 +3115,16 @@
+@@ -3107,6 +3121,16 @@
          self.inherited_secure_context
      }
 
diff --git a/patches/components/script/dom/html/htmllinkelement.rs.patch b/patches/components/script/dom/html/htmllinkelement.rs.patch
index 55a072d..9733023 100644
--- a/patches/components/script/dom/html/htmllinkelement.rs.patch
+++ b/patches/components/script/dom/html/htmllinkelement.rs.patch
@@ -1,6 +1,6 @@
 --- original
 +++ modified
-@@ -697,7 +697,7 @@
+@@ -693,7 +693,7 @@
          if !window.is_top_level() {
              return;
          }
diff --git a/patches/components/script/dom/servointernals.rs.patch b/patches/components/script/dom/servointernals.rs.patch
index a91f790..d91977d 100644
--- a/patches/components/script/dom/servointernals.rs.patch
+++ b/patches/components/script/dom/servointernals.rs.patch
@@ -20,7 +20,7 @@
  use crate::dom::globalscope::GlobalScope;
  use crate::dom::promise::Promise;
  use crate::realms::{AlreadyInRealm, InRealm};
-@@ -132,22 +134,38 @@
+@@ -141,22 +143,38 @@
 
      /// <https://servo.org/internal-no-spec>
      fn GetBoolPreference(&self, name: USVString) -> Fallible<bool> {
@@ -69,7 +69,7 @@
          }
          Err(Error::TypeMismatch(None))
      }
-@@ -154,11 +172,19 @@
+@@ -163,11 +181,19 @@
 
      /// <https://servo.org/internal-no-spec>
      fn GetStringPreference(&self, name: USVString) -> Fallible<USVString> {
@@ -94,7 +94,7 @@
          }
          Err(Error::TypeMismatch(None))
      }
-@@ -165,23 +191,59 @@
+@@ -174,23 +200,59 @@
 
      /// <https://servo.org/internal-no-spec>
      fn SetBoolPreference(&self, name: USVString, value: bool) {
@@ -163,7 +163,7 @@
      }
  }
 
-@@ -197,7 +259,10 @@
+@@ -206,7 +268,10 @@
      /// The navigator.servo api is exposed to about: pages except about:blank, as
      /// well as any URLs provided by embedders that register new protocol handlers.
      #[expect(unsafe_code)]
diff --git a/patches/components/script/dom/window.rs.patch b/patches/components/script/dom/window.rs.patch
index 288890e..6a41bc4 100644
--- a/patches/components/script/dom/window.rs.patch
+++ b/patches/components/script/dom/window.rs.patch
@@ -83,7 +83,7 @@
          // Step 6: Let userPromptHandler be WebDriver BiDi user prompt opened with this,
          // "prompt", and message.
          // TODO: Add support for WebDriver BiDi.
-@@ -3030,9 +3058,33 @@
+@@ -3027,9 +3055,33 @@
          &self,
          input_event: &ConstellationInputEvent,
      ) -> Option<HitTestResult> {
@@ -120,7 +120,7 @@
      }
 
      #[expect(unsafe_code)]
-@@ -3051,8 +3103,25 @@
+@@ -3048,8 +3100,25 @@
          // SAFETY: This is safe because `Window::query_elements_from_point` has ensured that
          // layout has run and any OpaqueNodes that no longer refer to real nodes are gone.
          let address = UntrustedNodeAddress(result.node.0 as *const c_void);
@@ -147,7 +147,7 @@
              cursor: result.cursor,
              point_in_node: result.point_in_target,
              point_in_frame,
-@@ -3733,6 +3802,8 @@
+@@ -3730,6 +3799,8 @@
          player_context: WindowGLContext,
          #[cfg(feature = "webgpu")] gpu_id_hub: Arc<IdentityHub>,
          inherited_secure_context: Option<bool>,
@@ -156,7 +156,7 @@
          theme: Theme,
          weak_script_thread: Weak<ScriptThread>,
      ) -> DomRoot<Self> {
-@@ -3759,6 +3830,8 @@
+@@ -3756,6 +3827,8 @@
                  gpu_id_hub,
                  inherited_secure_context,
                  unminify_js,
diff --git a/patches/components/script/messaging.rs.patch b/patches/components/script/messaging.rs.patch
index 0ef723a..6ad4618 100644
--- a/patches/components/script/messaging.rs.patch
+++ b/patches/components/script/messaging.rs.patch
@@ -1,9 +1,9 @@
 --- original
 +++ modified
-@@ -107,6 +107,8 @@
-                 ScriptThreadMessage::AccessibilityTreeUpdate(..) => None,
+@@ -108,6 +108,8 @@
                  ScriptThreadMessage::UpdatePinchZoomInfos(id, _) => Some(*id),
                  ScriptThreadMessage::SetAccessibilityActive(..) => None,
+                 ScriptThreadMessage::TriggerGarbageCollection => None,
 +                ScriptThreadMessage::DispatchEmbeddedWebViewEvent { parent, .. } => Some(*parent),
 +                ScriptThreadMessage::DispatchServoError(..) => None,
              },
diff --git a/patches/components/script/script_thread.rs.patch b/patches/components/script/script_thread.rs.patch
index 1ec9900..6422a14 100644
--- a/patches/components/script/script_thread.rs.patch
+++ b/patches/components/script/script_thread.rs.patch
@@ -59,9 +59,9 @@
              },
              ScriptThreadMessage::ForwardKeyboardScroll(pipeline_id, scroll) => {
                  if let Some(document) = self.documents.borrow().find_document(pipeline_id) {
-@@ -1970,6 +1982,16 @@
-             ScriptThreadMessage::SetAccessibilityActive(active) => {
-                 self.set_accessibility_active(active);
+@@ -1973,6 +1985,16 @@
+             ScriptThreadMessage::TriggerGarbageCollection => unsafe {
+                 JS_GC(*GlobalScope::get_cx(), GCReason::API);
              },
 +            ScriptThreadMessage::DispatchEmbeddedWebViewEvent {
 +                target,
@@ -76,7 +76,7 @@
          }
      }
 
-@@ -3012,6 +3034,9 @@
+@@ -3015,6 +3037,9 @@
              .documents
              .borrow()
              .find_iframe(parent_pipeline_id, browsing_context_id);
@@ -86,7 +86,7 @@
          if let Some(frame_element) = frame_element {
              frame_element.update_pipeline_id(new_pipeline_id, reason, cx);
          }
-@@ -3031,6 +3056,7 @@
+@@ -3034,6 +3059,7 @@
                  // is no need to pass along existing opener information that
                  // will be discarded.
                  None,
@@ -94,7 +94,7 @@
              );
          }
      }
-@@ -3307,6 +3333,44 @@
+@@ -3310,6 +3336,44 @@
          }
      }
 
@@ -139,7 +139,7 @@
      fn ask_constellation_for_top_level_info(
          &self,
          sender_webview_id: WebViewId,
-@@ -3421,7 +3485,13 @@
+@@ -3424,7 +3488,13 @@
              self.senders.pipeline_to_embedder_sender.clone(),
              self.senders.constellation_sender.clone(),
              incomplete.pipeline_id,
@@ -154,7 +154,7 @@
              incomplete.viewport_details,
              origin.clone(),
              final_url.clone(),
-@@ -3443,6 +3513,8 @@
+@@ -3446,6 +3516,8 @@
              #[cfg(feature = "webgpu")]
              self.gpu_id_hub.clone(),
              incomplete.load_data.inherited_secure_context,
@@ -163,7 +163,7 @@
              incomplete.theme,
              self.this.clone(),
          );
-@@ -3466,6 +3538,7 @@
+@@ -3469,6 +3541,7 @@
              incomplete.webview_id,
              incomplete.parent_info,
              incomplete.opener,
@@ -171,7 +171,7 @@
          );
          if window_proxy.parent().is_some() {
              // https://html.spec.whatwg.org/multipage/#navigating-across-documents:delaying-load-events-mode-2
-@@ -4197,6 +4270,24 @@
+@@ -4206,6 +4279,24 @@
          document.event_handler().handle_refresh_cursor();
      }
 
diff --git a/patches/components/shared/constellation/from_script_message.rs.patch b/patches/components/shared/constellation/from_script_message.rs.patch
index bfa935a..cef2691 100644
--- a/patches/components/shared/constellation/from_script_message.rs.patch
+++ b/patches/components/shared/constellation/from_script_message.rs.patch
@@ -119,10 +119,10 @@
      /// Mark a new document as active
      ActivateDocument,
      /// Set the document state for a pipeline (used by screenshot / reftests)
-@@ -724,6 +773,44 @@
-     ForwardKeyboardScroll(PipelineId, KeyboardScroll),
-     /// Notify the Constellation of the screenshot readiness of a given pipeline.
+@@ -726,6 +775,44 @@
      RespondToScreenshotReadinessRequest(ScreenshotReadinessResponse),
+     /// Request the constellation to force garbage collection in all `ScriptThread`'s.
+     TriggerGarbageCollection,
 +    /// Notification from an embedded webview to be forwarded to its parent iframe element.
 +    /// The Constellation will forward this to the parent pipeline's script thread.
 +    EmbeddedWebViewNotification(EmbeddedWebViewEventType),
diff --git a/patches/components/shared/script/lib.rs.patch b/patches/components/shared/script/lib.rs.patch
index e2d5e14..2f730e7 100644
--- a/patches/components/shared/script/lib.rs.patch
+++ b/patches/components/shared/script/lib.rs.patch
@@ -35,10 +35,10 @@
  }
 
  /// When a pipeline is closed, should its browsing context be discarded too?
-@@ -308,6 +316,19 @@
-     UpdatePinchZoomInfos(PipelineId, PinchZoomInfos),
-     /// Activate or deactivate accessibility features.
+@@ -310,6 +318,19 @@
      SetAccessibilityActive(bool),
+     /// Force a garbage collection in this script thread.
+     TriggerGarbageCollection,
 +    /// Dispatch an event on an embedded webview's iframe element.
 +    /// This is sent from the constellation when it receives an `EmbeddedWebViewNotification`
 +    /// from an embedded webview's script thread.
diff --git a/resources/about-memory.html b/resources/about-memory.html
index 7e6e4c1..8fa1de2 100644
--- a/resources/about-memory.html
+++ b/resources/about-memory.html
@@ -154,6 +154,12 @@
       }
 
       function start() {
+        window.gcButton.onclick = async () => {
+          window.gcButton.disabled = true;
+          navigator.servo.garbageCollectAllContexts();
+          window.gcButton.disabled = false;
+        };
+
         window.startButton.onclick = async () => {
           let content = await navigator.servo.reportMemory();
           let reports = JSON.parse(content);
@@ -211,6 +217,7 @@
   <body>
     <h2>Memory Reports</h2>
     <button id="startButton">Measure</button>
+    <button id="gcButton">Force GC</button>
     <div id="reports" class="hidden"></div>
   </body>
 </html>