# Open Two-Factor Authenticator

> A sync-able open-source two-factor authenticator

Canonical page: [https://chrome-stats.com/d/open-two-factor-authenticator](https://chrome-stats.com/d/open-two-factor-authenticator)

## Overview

- **ID:** `open-two-factor-authenticator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** InBasic
- **Category:** web-development,privacy-security,appearance
- **Daily users:** 285
- **Weekly downloads:** 9
- **Rating:** 3.33 / 5 (6 ratings)
- **Version:** 0.3.3
- **Last updated:** 2024-11-05
- **First published:** 2015-12-05
- **Size:** 270 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/open-two-factor-authenticator/)
- **Website:** [https://webextension.org/listing/two-factor-authenticator.html](https://webextension.org/listing/two-factor-authenticator.html)

## Description

Open Two-Factor Authenticator is an open-source Chrome extension that enhances your online security by providing sync-able two-factor authentication (2FA). It securely stores all your 2FA credentials in an encrypted local repository, which you can sync across multiple devices, ensuring your authentication tokens remain safe.

The extension encrypts all credentials with a passkey, safeguarding your data even when synced. While it's the initial release and may contain bugs, features like QR code scanning and manual code entry simplify adding credentials. Users are encouraged to keep original QR codes as backups and contribute feedback via the GitHub repository to improve the application.

## Rankings

- #6,867 — Overall
- #36 — fact
- #104 — openvpn
- #114 — openclaw
- #125 — openai
- #132 — education

## Permissions and access

### Permissions

- `storage`
- `notifications`

## Safety

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

### Analysis details

- Enables sending notifications which can be spammed but have minimal direct security impact.
- 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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- [Authenticator](https://chrome-stats.com/d/auth-helper) — 145,840 users, 4.26 / 5
- [Local 2FA: Secure OTP Manager](https://chrome-stats.com/d/local-2fa-secure-otp-manager) — 7 users
- [EasyAuth](https://chrome-stats.com/d/easyauth) — 1 users, 1.00 / 5
- [Offline 2FA Generator](https://chrome-stats.com/d/offline-2fa-generator) — 83 users, 4.00 / 5
- [Two-Factor Authenticator](https://chrome-stats.com/d/two-factor-authenticatorrrr) — 18 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/open-two-factor-authenticator)