# PQSpy

> Shows whether the connection was protected with post-quantum encryption.

Canonical page: [https://chrome-stats.com/d/pqspy](https://chrome-stats.com/d/pqspy)

## Overview

- **ID:** `pqspy`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Bas Westerbaan
- **Category:** web-development,privacy-security
- **Daily users:** 57
- **Weekly downloads:** 6
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 0.1.8
- **Last updated:** 2026-08-31
- **First published:** 2024-08-21
- **Size:** 117 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/pqspy/)
- **Website:** [https://github.com/bwesterb/pqspy](https://github.com/bwesterb/pqspy)

## Description

**PQSpy** helps you determine whether your current browser connection is protected with post-quantum encryption. Use this lightweight Firefox add-on to quickly check post-quantum security support while browsing.

Ideal for privacy-conscious users, security researchers, and anyone interested in the transition to quantum-resistant internet encryption.

## Rankings

- #15,312 — Overall
- #8 — ad spy
- #84 — encrypt
- #108 — connection
- #196 — protect
- #238 — post

## Permissions and access

### Permissions

- `tabs`
- `cookies`
- `webRequest`
- `webRequestBlocking`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [PQSpy-NamelessNanashi](https://chrome-stats.com/d/pqspy-namelessnanashi) — 4 users, 5.00 / 5
- [PQC Checker Post-Quantum Supp](https://chrome-stats.com/d/pqc-checker-post-quantum-supp) — 1 users
- [Are We Post-Quantum Yet?](https://chrome-stats.com/d/are-we-post-quantum-yet) — 5 users
- [QiSpace SEQUR™ PPK Generator](https://chrome-stats.com/d/qispace-sequr-ppk-generator) — 2 users, 5.00 / 5
- [Quantum Safety](https://chrome-stats.com/d/quantum-safety) — 21 users
- [Secure Connection Monitor Pro](https://chrome-stats.com/d/secure-connection-monitor-pro)
- [Paranoia](https://chrome-stats.com/d/paranoia) — 3 users, 4.25 / 5
- [Draco — Post-Quantum VPN](https://chrome-stats.com/d/draco-post-quantum-vpn) — 1 users, 1.00 / 5
- [Passphrase Meter](https://chrome-stats.com/d/passphrase-meter) — 1 users
- [Secure Connection Monitor](https://chrome-stats.com/d/secure-connection-monitor) — 5 users
- [IPPeek](https://chrome-stats.com/d/ippeek) — 15 users
- [QSeal — post-quantum encryption & signing](https://chrome-stats.com/d/qseal-post-quantum) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/pqspy)