antibrow/dsh-antibrow

What it solves

It solves the problem of AI agents being easily detected and blocked by websites when using standard automation browsers. Typical browser plugins provide a fresh, "stock" Chromium instance that lacks persistence (cookies and logins are lost after each run) and has a generic fingerprint that signals to websites that the browser is an automated bot.

How it works

This project is a plugin for the DeepSeek Harness that integrates the AntiBrow browser—a Chromium fork with engine-level fingerprinting. Instead of injecting scripts into a page to spoof identity, it modifies the browser engine itself to report consistent hardware, software, and network details. It uses the Playwright API for control and provides 16 tools to the AI model for managing sessions, profiles, and proxies. It also supports creating profiles based on real-device fingerprints, including Android phone emulation with consistent GPU and viewport reports.

Who it’s for

Developers building AI agents that need to maintain persistent identities, access accounts behind logins, or operate on websites with strict bot detection systems.

Highlights

• Persistent Identities: Maintains cookies, passkeys, and session data across runs, allowing agents to avoid repeated logins that trigger suspicion.
• Engine-Level Spoofing: Spoofs user agents, fonts, canvas, and WebGL at the engine level to avoid detection by scripts that look for injected spoofing tools.
• Coherent Identity: Syncs timezone, locale, and network profiles with the residential proxy's exit point to prevent contradictions in reported data.
• Mobile Emulation: Ability to switch to an Android device profile with a single argument, providing consistent mobile client hints and touch points.
• Live Monitoring: Includes a start_live_view tool to stream the agent's browser activity to a dashboard in real-time.