PhoenixBox Highlighter

A Burp Suite extension that automatically color-highlights proxy history entries based on the x-mac-container-color HTTP header injected by the PhoenixBox Firefox extension.

When a request arrives with this header, the matching highlight color is applied in Burp's proxy history and the header is stripped before the request is forwarded to the target server.

How It Works

PhoenixBox is a Firefox extension for multi-container colored browsing. One of its features, Paint the Burp, adds an x-mac-container-color header to proxied requests so Burp can visually associate each request with its source container.

PhoenixBox Highlighter reads that header and maps it to a highlight color in the proxy history — letting you instantly tell which container each request came from.

Firefox Container (PhoenixBox)
        │
        │  x-mac-container-color: red
        ▼
   Burp Suite Proxy
        │
        ├─ highlight entry red in proxy history
        ├─ strip x-mac-container-color from request
        ▼
   Target Server

Supported Colors

Header Value	Burp Highlight
blue	Blue
cyan	Cyan
green	Green
yellow	Yellow
orange	Orange
red	Red
pink	Pink
magenta	Magenta

Header values are case-insensitive and leading/trailing whitespace is ignored.

Requirements

• PhoenixBox Firefox extension — Firefox Add-ons · GitHub
• Burp Suite (Community or Pro)
• Java 17+ (for building from source)

Installation

1. Install the PhoenixBox Firefox extension:
   • From the Firefox Add-ons store: addons.mozilla.org/en-US/firefox/addon/phoenixbox
   • Or directly from GitHub: github.com/avihayf/PhoenixBox
2. Download the latest PhoenixBoxHighlighter.jar from the Releases page,
   or build from source.
3. In Burp Suite, go to Extensions > Installed > Add.
4. Set Extension type to Java and select the JAR.

Building & Testing

# Run tests
./gradlew test

# Build JAR
./gradlew clean shadowJar

License

Mozilla Public License 2.0. See LICENSE.

Credits

Inspired by PwnFox.

Author

0xR3DB0MB