First public release on addons.mozilla.org.

Imperum Veil is a PII-redaction layer for web-hosted LLMs. It detects names, emails, IPs, hostnames, secrets, and similar identifiers in your prompt before you send it to ChatGPT, Claude.ai,Gemini, or Microsoft Copilot, and replaces them with stable placeholders so the model never sees the original values.

Requires an Imperum tenant (https://imperum.io). On first run, open the extension Options page, enter your Imperum URL, and sign in.

Compatibility: Firefox 140+ on desktop; Firefox for Android 142+.