diff --git a/components/profile/heartbeats.rs b/components/profile/heartbeats.rs
index b05cbf74b714..761a1cf4d548 100644
--- a/components/profile/heartbeats.rs
+++ b/components/profile/heartbeats.rs
@@ -65,6 +65,9 @@ pub fn init() {
     maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptWorkerEvent);
     maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptServiceWorkerEvent);
     maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptParseXML);
+    maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptEnterFullscreen);
+    maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptExitFullscreen);
+    maybe_create_heartbeat(&mut hbs, ProfilerCategory::ScriptWebVREvent);
     maybe_create_heartbeat(&mut hbs, ProfilerCategory::ApplicationHeartbeat);
     unsafe {
         HBS = Some(mem::transmute(Box::new(hbs)));
diff --git a/tests/heartbeats/characterize.py b/tests/heartbeats/characterize.py
index 948f5b9de43b..9674119c44bf 100644
--- a/tests/heartbeats/characterize.py
+++ b/tests/heartbeats/characterize.py
@@ -65,6 +65,9 @@
     ("ScriptWorkerEvent", HEARTBEAT_DEFAULT_WINDOW_SIZE),
     ("ScriptServiceWorkerEvent", HEARTBEAT_DEFAULT_WINDOW_SIZE),
     ("ScriptParseXML", HEARTBEAT_DEFAULT_WINDOW_SIZE),
+    ("ScriptEnterFullscreen", HEARTBEAT_DEFAULT_WINDOW_SIZE),
+    ("ScriptExitFullscreen", HEARTBEAT_DEFAULT_WINDOW_SIZE),
+    ("ScriptWebVREvent", HEARTBEAT_DEFAULT_WINDOW_SIZE),
     ("ApplicationHeartbeat", 100),
 ]
 ENERGY_READER_BIN = "energymon-file-provider"