nullGravitum

Browser extension

nullGravitum Guard

A thin, passive site-risk helper (similar category to tools like Wappalyzer: quick posture signals while you browse). You only see a generic risk score and summary. Sensitive intel (subdomain / breach context) stays on nullGravitum servers for admin review — never inside the extension.

Download

Version 0.1.0 · install unpacked / temporary until store approval

Download for Chrome / Edge / BraveDownload for Firefox

Chrome zip unpacks to a nullgravitum-guard/ folder · Firefox zip has manifest.json at the root

Install on Chrome / Edge / Brave

  1. Download the zip and unzip it so you have an extension/ folder.
  2. Open chrome://extensions (or edge://extensions).
  3. Turn on Developer mode.
  4. Click Load unpacked and select the unzipped extension/ folder.
  5. Pin nullGravitum Guard, open any https site, click the icon → Scan this tab.
  6. Optional: right-click the extension → Options to change API base / public token.

Install on Firefox

  1. Download and unzip the same package.
  2. Open about:debugging#/runtime/this-firefox.
  3. Click Load Temporary Add-on… and choose manifest.json inside the unzipped folder.
  4. Temporary add-ons reset when Firefox restarts until the extension is published on addons.mozilla.org (AMO).

Store listings (Chrome Web Store + Firefox AMO) are in progress. Until approval, use the direct zip above.

Privacy

The extension sends the page URL and passive DOM signals (HTTPS, mixed content, login form presence) to nullGravitum. It does not scrape passwords or store breach data in the browser. Full intel is admin-only.

Read the extension privacy policy →
How audits workContactadmin@pythonicsemail.com