Highflame Browser Security by Highflame

Enterprise-grade API governance and threat prevention for Firefox

About this extension

Highflame Browser Security protects your organization from sensitive data leakage on AI chat platforms. It intercepts and evaluates prompts, file uploads, and clipboard actions against your enterprise security policies in real-time — all processing happens locally in the browser with zero data sent externally.

Features:

Real-time prompt and file upload scanning
Enterprise policy enforcement
Clipboard protection for sensitive content
Local-first security — no data leaves your browser
Configurable via API key for enterprise management

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Permissions and data

Required permissions:

Access your data for chatgpt.com
Access your data for chat.openai.com
Access your data for claude.ai
Access your data for anthropic.com
Access your data for gemini.google.com
Access your data for perplexity.ai
Access your data for www.perplexity.ai
Access your data for copilot.microsoft.com
Access your data for meta.ai
Access your data for www.meta.ai

Optional permissions:

Access your data for chatgpt.com
Access your data for chat.openai.com
Access your data for claude.ai
Access your data for anthropic.com
Access your data for gemini.google.com
Access your data for perplexity.ai
Access your data for www.perplexity.ai
Access your data for copilot.microsoft.com
Access your data for meta.ai
Access your data for www.meta.ai
Access your data for shield.api.highflame.ai
Access your data for studio.highflame.ai

Data collection:

The developer says this extension doesn't require data collection.