Local 2FA: Secure OTP Manager

Name: Local 2FA: Secure OTP Manager
Author: nahuel

By: nahuel

Local 2FA is an extension for managing OTP codes focused on privacy and security. It is easy to use and very practical when you need the codes generated when logging into online accounts.

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Features & Capabilities

Local 2FA is an extension for managing OTP codes focused on privacy and security. It is easy to use and very practical when you need the codes generated when logging into online accounts. In the extension settings, users can increase the level of privacy and security by setting a PIN to unlock the extension and taking action when there are too many failed unlock attempts. It is also possible to activate camouflage mode so that the extension does not appear at first glance to be an OTP code manager extension.

MAIN FEATURES OF THE EXTENSION: Security & Privacy

Complete offline operation - no internet connection required
Local-only storage - secrets never leave your device
Zero telemetry - no data collection or tracking
Open source - fully auditable code
PIN encryption using PBKDF2 with SHA-256

Advanced Protection

PIN lock with configurable auto-lock timer
Failed attempt monitoring with customizable thresholds
Decoy mode - generates realistic fake accounts after breach attempts
Disguise mode - camouflages extension interface for additional privacy
Automatic data wipe options for maximum security

User Experience

Clean, modern interface with dark theme support
The extension has two languages (English and Spanish)
Floating window for quick code access on any webpage
One-click code copying
Visual countdown timer for code expiration
Multi-language support (English/Spanish)
Compatible with Google Authenticator, Authy, and all TOTP services

Technical Details

Built with Manifest V3 for enhanced security
Pure JavaScript - no external dependencies
Uses Web Crypto API for secure code generation
Supports standard TOTP (RFC 6238) protocol

Perfect for users who prioritize privacy and want complete control over their authentication data without relying on cloud services.

User Growth & Download Statistics

Add-on

By:

nahuel

Daily users:

Version:

1.0.0 Last updated: 2025-11-02

Version code:

6065214

Creation date:

2025-10-30

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

439.96KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-11

Compare stats and ranking:

Ranking

# 37,673 ▼ 105

Other rankings

#76 in secure keyword 43 ▼ 1

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

nahuel

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/local-2fa-secure-otp-manager/

Is Local 2FA: Secure OTP Manager Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Local 2FA: Secure OTP Manager requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Local 2FA: Secure OTP Manager is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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