An open-source two-factor Time-based One-Time Password (TOTP) authenticator with SHA-256 secure storage

Latest Version

Version
0.3.3
Update
November 20, 2024
Size
269KiB
Developer
add0n.com
Category
Users
10,000+
Rating
3 ★
Manifest Version
3
Web Store Status
Languages Support
Deutsch
English
Français
Nederlands
Español
Italiano
Português (Brasil)
Português (Portugal)
русский
中文 (简体)
日本語
See more
Permissions
Storage
Notifications
See more

Open Two-Factor Authenticator Extension

Open Two-Factor Authenticator aims to provide an open-source two-factor authentication to browsers and Android devices with synced storage.

By using this extension, you can have your encrypted keys stored in the browser's synced storage. This allows you to sync them across multiple devices. This extension uses the public key/private key method to encrypt stored data (SHA-256).

Currently, Open Two-Factor Authenticator supports Firefox on Desktop, Firefox on Android, Chrome, Edge, and Opera browsers. Standalone Android implantation is still in progress.

Features:
1. Stores secrets securely using AES-CBC encryption.
2. Does not store passwords
3. Does not have any server-side activities whatsoever
4. Uses synced storage, so secrets are securely shared between multiple devices.
5. Supports custom number of digits and custom validation period
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "Open Two-Factor Authenticator", "description": "__MSG_description__", "default_locale": "en", "version": "0.3.3", "manifest_version": 3, "permissions": [ "storage", "notifications" ], "offline_enabled": true, "homepage_url": "https://webextension.org/listing/two-factor-authenticator.html", "background": { "service_worker": "worker.js" }, "icons": { "16": "/data/icons/16.png", "32": "/data/icons/32.png", "48": "/data/icons/48.png", "64": "/data/icons/64.png", "128": "/data/icons/128.png", "256": "/data/icons/256.png", "512": "/data/icons/512.png" }, "action": { "default_popup": "/data/popup/index.html" }, "commands": { "_execute_action": {} }}
Read more

How to download and manually install Open Two-Factor Authenticator extension for Chrome

Looking for a way to install Open Two-Factor Authenticator extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Open Two-Factor Authenticator extensions manually, this article outlines two simple methods to effortlessly install Open Two-Factor Authenticator extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Open Two-Factor Authenticator extension and manually install through Drag &Drop

If you ever need to manually install a Open Two-Factor Authenticator extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Open Two-Factor Authenticator Extension by clicking the "Download CRX" button on the website.

Look for the Open Two-Factor Authenticator extension you wish to install. Go to the website and download the Open Two-Factor Authenticator extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Open Two-Factor Authenticator extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Open Two-Factor Authenticator extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Open Two-Factor Authenticator extension for Chrome and install in Developer Mode

This is another method to install Open Two-Factor Authenticator extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Open Two-Factor Authenticator extension file

Select and download the Open Two-Factor Authenticator extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Open Two-Factor Authenticator extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Open Two-Factor Authenticator extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Open Two-Factor Authenticator extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Open Two-Factor Authenticator extension in 2 ways. We hope this guide proves helpful.

Similar Extensions

icon

Authenticator Extension · Productivity 10,000+ 2074 ★ 2.87MiB

icon

GAuth Authenticator Extension · Productivity 10,000+ 216 ★ 291KiB

icon

2FAst - Code Sender Extension · Productivity 10,000+ 2 ★ 41.82KiB

icon

QR creator Extension · Productivity 10,000+ 12 ★ 42.96KiB

icon

2FA Authenticator app Extension · Productivity 10,000+ 46 ★ 595KiB

icon

Web2FA - Authenticator Extension · Productivity 10,000+ 5 ★ 511KiB

icon

MFAuth - 2FA Authenticator Extension · Productivity 10,000+ 0 ★ 2.58MiB

icon

Authentiq 2FA Extension · Productivity 10,000+ 3 ★ 41.01KiB

icon

TOTP Authenticator Extension · Productivity 10,000+ 21 ★ 811KiB

icon

Nithra Authenticator Extension · Social & Communication 10,000+ 4 ★ 609KiB

icon

2 Factor Sigil Extension · Developer Tools 10,000+ 0 ★ 47.63KiB

icon

2FA Notifier Extension · Productivity 10,000+ 6 ★ 466KiB

icon

HISTORY Code Extension · Productivity 10,000+ 0 ★ 972KiB

icon

Free Password Manager & Authenticator & SSO Extension · Productivity 10,000+ 94 ★ 498KiB

icon

Push Authenticator Pro Extension · Productivity 10,000+ 1 ★ 102KiB

icon

Force Authentication for Google™ Extension · Productivity 10,000+ 1 ★ 52.4KiB

icon

mini authenticator Extension · Productivity 10,000+ 4 ★ 70.61KiB

icon

TOTP Auto-Display Extension · Productivity 10,000+ 2 ★ 52.15KiB

icon

Two-Factor Authentication - 2FA Extension · Productivity 10,000+ 2 ★ 983KiB

icon

Authenticator App Extension · Productivity 10,000+ 19 ★ 1.33MiB

icon

andOTP Extension Extension · Productivity 10,000+ 2 ★ 116KiB

icon

Authenticator App Extension · Productivity 10,000+ 6 ★ 1.63MiB

icon

Simple OTP Token Generator Extension · Productivity 10,000+ 5 ★ 221KiB

icon

2! Authenticator Extension · Productivity 10,000+ 4 ★ 395KiB

User reviews

icon

John Weiss (ID: 000000627bc3b61f) Voted 2 ★ - Updated 04/29/2021 no import

icon

Esther Z (ID: 000000b4a3ebbcc6) Voted 3 ★ - Updated 02/12/2021 Werkt prima. Onhandige is, dat er geen optie bij zit om de code te kopiëren. En omdat het schermpje over je scherm opent waar je code moet invoeren, is enige optie de code te selecteren, rechtermuisknop en dan code kopiëren. Op zich prima, als er daardoor niet een spatie in het midden van de code wordt meegenomen (code bestaat uit 2x 3 cijfers). Voordat ik dat doorhad...Nu moet ik die spatie iedere keer verwijderen na het plakken. Room for improvement!

icon

김환 (ID: 00000091d1173d77) Voted 3 ★ - Updated 05/12/2019 Old version was better!