🛡️ BrowserMulti — Stealth Chromium Core

High-performance Chromium core with native C++ patches for Playwright and CDP automation.

Not a patched config. Not a JavaScript injection. BrowserMulti applies fingerprint-related changes directly at Chromium C++ source level across Blink and V8. Validate behavior in your own authorized automation and testing environments.

🚀 Key Highlights

• Native C++ engine patching: Changes navigator.webdriver, plugin/mime-type defaults, User-Agent branding, Client Hints, and selected V8 Inspector behavior at source level.
• Playwright and CDP integration: Supports Playwright persistent contexts and Chrome DevTools Protocol workflows. Runtime behavior depends on Playwright version, launch flags, profile, and host policy.
• Static non-component distribution: is_component_build = false produces a static Chromium layout centered on chrome.dll, with Windows assembly manifest 152.0.7977.54.manifest.
• Network compatibility: Uses Chromium's native SOCKS5, HTTP/HTTPS proxy, proxy-authentication, and TLS networking stack.
• Automated upstream pipeline: PowerShell pipeline detects Stable releases, fetches a single tag, syncs dependencies, applies separate Chromium/V8 patches, regenerates GN files, builds, benchmarks, and packages.

📊 Benchmark Results — v152.0.7977.54

Results from the extracted binary using the project benchmark suite:

Total: 5/5 benchmark checks passed.

Direct command-line smoke testing on this Windows host remains sensitive to sandbox token and ACL behavior. The Playwright benchmark passed against the extracted binary; see handoff.md for full validation details and limitations.

🛠️ Playwright Python Integration

Point executable_path at the BrowserMulti binary:

import asyncio
from playwright.async_api import async_playwright


async def main():
    async with async_playwright() as p:
        context = await p.chromium.launch_persistent_context(
            user_data_dir="./profiles/profile_01",
            executable_path=(
                "D:/dichchrome/dist/"
                "browsermulti-152.0.7977.54-win64/chrome.exe"
            ),
            headless=False,
            args=[
                "--no-first-run",
                "--no-default-browser-check",
                "--disable-blink-features=AutomationControlled",
                "--proxy-bypass-list=<-loopback>",
            ],
        )
        page = context.pages[0] if context.pages else await context.new_page()
        await page.goto("https://antcpt.com/score_detector/")
        await asyncio.sleep(10)
        await context.close()


if __name__ == "__main__":
    asyncio.run(main())

Use only against systems and sites where you have authorization. Do not use BrowserMulti to bypass access controls, fraud controls, or third-party protections without permission.

🔄 Automated Sync and Build

powershell -ExecutionPolicy Bypass -File ./auto_sync_and_build.ps1

The pipeline can reset the Chromium source tree with git checkout . and git clean -df, sync dependencies, and run a long build. Back up local source changes and confirm disk space before execution. The script uses:

• Version-aware Stable version selection.
• Single-tag shallow fetch.
• gclient.bat dependency sync.
• Independent Chromium-root and V8 patch application.
• GN regeneration before Ninja.
• Strict runtime packaging with manifest/XML files.

🧩 Repository Layout

📦 Release Artifact

Current local artifact:

D:\dichchrome\dist\browsermulti-152.0.7977.54-win64.zip

• Size: 252,757,503 bytes (241.05 MB).
• Build: Static x64, is_component_build = false.
• Manifest: 152.0.7977.54.manifest.

Create a GitHub release at:

https://github.com/DungDT293/antidetech-browsermulti/releases/new

• Tag: v152.0.7977.54
• Title: BrowserMulti v152.0.7977.54 - Static Release
• Description: Static non-component Chromium build with native Blink/V8 patches; benchmark suite 5/5 PASS.
• Asset: browsermulti-152.0.7977.54-win64.zip

🏷️ Suggested Repository Metadata

Description: High-performance Chromium core with native V8/Blink C++ patches for authorized Playwright and CDP testing.

Topics: chromium, playwright, cdp, blink, v8, chromium-build, cpp, browser-automation

📄 License

This project contains Chromium-derived source and patches. Review Chromium's license and notices in the source tree before redistribution. Project-specific scripts and documentation are MIT-licensed unless stated otherwise.