PacketProwler by HACKERRR
Sleek, proxy-free HTTP/WS traffic capturer and passive security auditor natively inside your DevTools panel.
Extension Metadata
About this extension
PacketProwler is a lightweight, proxy-free developer utility and passive security auditor designed for quick API debugging and passive security analysis.
Key Features:
- Captures HTTP requests, response headers, cookies, and payloads natively inside Firefox DevTools.
- Passively audits headers for security posture compliance (missing HSTS, CSP, X-Frame-Options) and insecure session cookie configurations.
- Monitors WebSocket frame exchanges with message timeline details.
- Auto-indents and prettifies JSON payloads for both requests and responses.
- Allows exporting captured session history directly to standard HAR files.
- Provides one-click formatting tools (cURL commands, Python requests scripts) for easy copy-pasting.
Key Features:
- Captures HTTP requests, response headers, cookies, and payloads natively inside Firefox DevTools.
- Passively audits headers for security posture compliance (missing HSTS, CSP, X-Frame-Options) and insecure session cookie configurations.
- Monitors WebSocket frame exchanges with message timeline details.
- Auto-indents and prettifies JSON payloads for both requests and responses.
- Allows exporting captured session history directly to standard HAR files.
- Provides one-click formatting tools (cURL commands, Python requests scripts) for easy copy-pasting.
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Permissions and data
Required permissions:
- Extend developer tools to access your data in open tabs
- Access browser tabs
- Access your data for all web sites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 50.27 kB
- Last updated
- 6 days ago (5 Jul 2026)
- Related Categories
- Licence
- MIT Licence
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection