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Preview of TOTP Viewer

TOTP Viewer by Haruka Yamamoto

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

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

Required permissions:

  • Input data to the clipboard

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
1.0.3
Size
17.65 KB
Last updated
5 days ago (Nov 2, 2025)
Related Categories
  • Web Development
  • Privacy & Security
  • Games & Entertainment
License
Apache License 2.0
Version History
  • See all versions
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