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
🔐 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.
More information
- Add-on Links
- Version
- 1.0.3
- Size
- 17.65 KB
- Last updated
- 5 days ago (Nov 2, 2025)
- Related Categories
- License
- Apache License 2.0
- Version History
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