diff --git a/packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js b/packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js
index ecbe336bdcbe0..b4cc9bbc0bafc 100644
--- a/packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js
+++ b/packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js
@@ -18,6 +18,11 @@ import {
 import {ReactVersion} from '../../../../ReactVersions';
 import semver from 'semver';
 
+let React = require('react');
+let Scheduler;
+let store;
+let utils;
+
 // TODO: This is how other DevTools tests access the version but we should find
 // a better solution for this
 const ReactVersionTestingAgainst = process.env.REACT_VERSION || ReactVersion;
@@ -26,11 +31,16 @@ const ReactVersionTestingAgainst = process.env.REACT_VERSION || ReactVersion;
 const enableSiblingPrerendering =
   false && semver.gte(ReactVersionTestingAgainst, '19.0.0');
 
+// This flag is on experimental which disables timeline profiler.
+const enableComponentPerformanceTrack =
+  React.version.startsWith('19') && React.version.includes('experimental');
+
 describe('Timeline profiler', () => {
-  let React;
-  let Scheduler;
-  let store;
-  let utils;
+  if (enableComponentPerformanceTrack) {
+    test('no tests', () => {});
+    // Ignore all tests.
+    return;
+  }
 
   beforeEach(() => {
     utils = require('./utils');
diff --git a/packages/react-devtools-shared/src/__tests__/preprocessData-test.js b/packages/react-devtools-shared/src/__tests__/preprocessData-test.js
index 06595b67ca1a0..7a77ab20eb9cf 100644
--- a/packages/react-devtools-shared/src/__tests__/preprocessData-test.js
+++ b/packages/react-devtools-shared/src/__tests__/preprocessData-test.js
@@ -16,16 +16,29 @@ import {ReactVersion} from '../../../../ReactVersions';
 
 const ReactVersionTestingAgainst = process.env.REACT_VERSION || ReactVersion;
 
+let React = require('react');
+let ReactDOM;
+let ReactDOMClient;
+let Scheduler;
+let utils;
+let assertLog;
+let waitFor;
+
+// This flag is on experimental which disables timeline profiler.
+const enableComponentPerformanceTrack =
+  React.version.startsWith('19') && React.version.includes('experimental');
+
 describe('Timeline profiler', () => {
-  let React;
-  let ReactDOM;
-  let ReactDOMClient;
-  let Scheduler;
-  let utils;
-  let assertLog;
-  let waitFor;
+  if (enableComponentPerformanceTrack) {
+    test('no tests', () => {});
+    // Ignore all tests.
+    return;
+  }
 
   describe('User Timing API', () => {
+    if (enableComponentPerformanceTrack) {
+      return;
+    }
     let currentlyNotClearedMarks;
     let registeredMarks;
     let featureDetectionMarkName = null;
diff --git a/packages/shared/ReactFeatureFlags.js b/packages/shared/ReactFeatureFlags.js
index 3331deded9af9..9935784b533d2 100644
--- a/packages/shared/ReactFeatureFlags.js
+++ b/packages/shared/ReactFeatureFlags.js
@@ -260,10 +260,6 @@ export const disableTextareaChildren = false;
 // Debugging and DevTools
 // -----------------------------------------------------------------------------
 
-// Adds user timing marks for e.g. state updates, suspense, and work loop stuff,
-// for an experimental timeline tool.
-export const enableSchedulingProfiler = __PROFILE__;
-
 // Helps identify side effects in render-phase lifecycle hooks and setState
 // reducers by double invoking them in StrictLegacyMode.
 export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
@@ -271,6 +267,17 @@ export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
 // Gather advanced timing metrics for Profiler subtrees.
 export const enableProfilerTimer = __PROFILE__;
 
+// Adds performance.measure() marks using Chrome extensions to allow formatted
+// Component rendering tracks to show up in the Performance tab.
+// This flag will be used for both Server Component and Client Component tracks.
+// All calls should also be gated on enableProfilerTimer.
+export const enableComponentPerformanceTrack = __EXPERIMENTAL__;
+
+// Adds user timing marks for e.g. state updates, suspense, and work loop stuff,
+// for an experimental timeline tool.
+export const enableSchedulingProfiler: boolean =
+  !enableComponentPerformanceTrack && __PROFILE__;
+
 // Record durations for commit and passive effects phases.
 export const enableProfilerCommitHooks = __PROFILE__;
 
diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
index a6001a9559609..83df5ed548da8 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -77,6 +77,7 @@ export const enableRefAsProp = true;
 export const enableRenderableContext = true;
 export const enableRetryLaneExpiration = false;
 export const enableSchedulingProfiler = __PROFILE__;
+export const enableComponentPerformanceTrack = false;
 export const enableScopeAPI = false;
 export const enableServerComponentLogs = true;
 export const enableSuspenseAvoidThisFallback = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.native-oss.js b/packages/shared/forks/ReactFeatureFlags.native-oss.js
index 723cc06c33a27..55ab25639fea0 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-oss.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-oss.js
@@ -67,6 +67,7 @@ export const enableRefAsProp = true;
 export const enableRenderableContext = true;
 export const enableRetryLaneExpiration = false;
 export const enableSchedulingProfiler = __PROFILE__;
+export const enableComponentPerformanceTrack = false;
 export const enableScopeAPI = false;
 export const enableServerComponentLogs = true;
 export const enableShallowPropDiffing = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
index 3581d31831784..d12029a672f7c 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
@@ -17,6 +17,7 @@ export const enableSchedulingProfiler = false;
 export const enableProfilerTimer = __PROFILE__;
 export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
+export const enableComponentPerformanceTrack = false;
 export const enableUpdaterTracking = false;
 export const enableCache = true;
 export const enableLegacyCache = __EXPERIMENTAL__;
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js
index edf67adf18bc3..31b3a118eae5a 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js
@@ -61,6 +61,7 @@ export const enableRefAsProp = true;
 export const enableRenderableContext = true;
 export const enableRetryLaneExpiration = false;
 export const enableSchedulingProfiler = __PROFILE__;
+export const enableComponentPerformanceTrack = false;
 export const enableScopeAPI = false;
 export const enableServerComponentLogs = true;
 export const enableShallowPropDiffing = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
index e64904005e143..59850bac75099 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
@@ -17,6 +17,7 @@ export const enableSchedulingProfiler = false;
 export const enableProfilerTimer = __PROFILE__;
 export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
+export const enableComponentPerformanceTrack = false;
 export const enableUpdaterTracking = false;
 export const enableCache = true;
 export const enableLegacyCache = true;
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index e6025242d4a78..0caf25c155625 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -62,6 +62,8 @@ export const disableInputAttributeSyncing = false;
 export const enableLegacyFBSupport = true;
 export const enableLazyContextPropagation = true;
 
+export const enableComponentPerformanceTrack = false;
+
 // Logs additional User Timing API marks for use with an experimental profiling tool.
 export const enableSchedulingProfiler: boolean =
   __PROFILE__ && dynamicFeatureFlags.enableSchedulingProfiler;