ZeroX

ZeroX is a high-performance Firefox extension engineered for security professionals, penetration testers, and web developers who require precision proxy control and streamlined auditing workflows.

Designed to bridge Firefox's Multi-Account Containers directly with Burp Suite and external proxies, ZeroX empowers you to isolate test scopes, identify traffic origins in real time, and bypass client-side header restrictions without leaving your browser.

• ⚡ Smart Burp Proxy Management
• Route all browser traffic or selectively isolate specific Container tabs through Burp Suite.
• Instant port presets (8080, 8081, 8888) with quick inline address editing.
• Zero-latency, in-memory request interception.
• 🏷 Container Color Header Injection (X-ZeroX-Color)
• Automatically injects X-ZeroX-Color: <color> into HTTP request headers for isolated container tabs.
• Effortlessly filter and track multi-user sessions inside Burp Suite Logger, Repeater, and Intruder.
• 🛡 Security Header Stripping
• Dynamically remove restrictive response headers (CSP, X-Frame-Options, X-XSS-Protection, HSTS) during security assessments.
• 🎨 8 One-Click Chromatic Container Launchers
• Instantly spawn isolated container sessions (Red, Orange, Yellow, Green, Cyan, Blue, Purple, Pink) with a single click.
• 🔍 DevTools Message Panel
• Integrated developer tools panel for deep postMessage inspection, filtering, and cross-origin frame analysis.
• 🔒 Privacy & Zero Telemetry
• 100% local execution with zero tracking, zero external font downloads, and zero third-party telemetry.

• Web Application Penetration Testers & Bug Bounty Hunters.
• Security Engineers auditing multi-tenant access control & session isolation.
• Full-stack developers testing OAuth, CORS, and cross-origin communication.