Your Minerva data stays on your device.

Maxnerva is an unofficial, student-built extension for McGill's Minerva portal. This page explains exactly what it does and doesn't do with your information.

Last updated July 24, 2026 Applies to horizon.mcgill.ca only No servers, no accounts, no tracking

Not affiliated with McGill University. "McGill" and "Minerva" are trademarks of McGill University. Maxnerva is an independent, unofficial project built by a student and is not endorsed by or connected to the University in any way.

The short version

Maxnerva has no backend server and no user accounts. Every feature — grade alerts, seat watching, schedule views, and the "Where is…?" search — runs entirely inside your own browser, using your own logged-in Minerva session. Nothing you do in the extension is ever transmitted to the developer or to any third party.

What it accesses

Maxnerva only runs on pages under https://horizon.mcgill.ca. It does nothing on any other website.
To power its features, it reads the Minerva page currently on screen — your transcript, course search results, or schedule — and, for the seat watcher and schedule views, re-requests those same Minerva pages using your existing logged-in session.

What's stored, and where

Your preferences (language choice, and the sections you've chosen to watch for open seats) and cached copies of grade and schedule data you've already viewed are stored locally on your device via Chrome's built-in storage. None of it leaves your browser.

You can clear this at any time — uninstall the extension, or go to chrome://extensions → Maxnerva → Details → Clear data.

Data sharing

None. No analytics, no tracking pixels, no advertising, no third-party requests of any kind.

Permissions

Permission	Why it's needed
`storage`	Stores your preferences and cached grade/schedule data locally on your device.
`notifications`	Shows a desktop notification when a course section you're watching opens a seat.
`tabs`	Lets "Where is…?" jump your active Minerva tab to the right page and highlight the target element.
`horizon.mcgill.ca/*`	All features operate only on your own logged-in Minerva session on this one domain.

Changes to this policy

If this policy changes, the "last updated" date at the top will be revised. Continuing to use the extension after an update means you accept the revised policy.