# TOTP Viewer

> A minimalist Firefox extension that generates TOTP (Time-based One-Time Password) codes directly in the browser.

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

## Overview

- **ID:** `totp-viewer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Haruka Yamamoto
- **Category:** web-development,privacy-security,games-entertainment
- **Daily users:** 3
- **Version:** 1.0.3
- **Last updated:** 2026-05-13
- **First published:** 2025-11-02
- **Size:** 18 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/totp-viewer/)
- **Website:** [https://harukadev.com](https://harukadev.com/)

## Description

A lightweight and secure Firefox extension that allows you to generate TOTP (Time-based One-Time Password) codes directly in your browser, without the need for external applications or online services.

🔐 WHY USE TOTP VIEWER?

In a world where digital security is essential, two-factor authentication (2FA) has become mandatory to protect your online accounts. TOTP Viewer offers a minimalist and efficient solution for managing your authentication codes without needing to carry your smartphone or rely on heavy applications.

This extension was designed with a focus on simplicity, security, and privacy. All processing happens locally in your browser – your TOTP secrets never leave your device.

✨ KEY FEATURES
<ul><li>ZERO EXTERNAL DEPENDENCIES
Uses Firefox's native Web Crypto API to generate TOTP codes securely and efficiently, without the need for third-party libraries.</li><li>MINIMALIST INTERFACE
Clean and compact design that doesn't take up unnecessary space. Small 200x150px popup with only the essential elements.</li><li>ONE-CLICK COPY
Click the TOTP code to automatically copy it to the clipboard. Instant visual feedback confirms the action.</li><li>VISUAL COUNTDOWN
Progress bar showing exactly how much time is left before the code expires, ensuring you always use a valid code.</li><li>SECURE STORAGE
Saves your TOTP URL locally in your browser using the Storage API. Your data remains only on your device.</li><li>OPTIMIZED PERFORMANCE
Extremely lightweight extension with less than 5KB total. Does not impact browser performance.</li><li>NO TRACKING
Zero data collection, no analytics, no telemetry. Your privacy is respected.</li></ul>

## Rankings

- #56,305 — Overall

## Permissions and access

### Permissions

- `storage`
- `clipboardWrite`

## Safety

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

### Analysis details

- Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.
- This extension has low user count. Unpopular extensions 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).

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