Desktop Browser Extensions Guide
Seamlessly autofill 2FA security codes and passwords across Safari, Google Chrome, and Microsoft Edge, integrated natively with your Mac.
Safari Browser
Included automatically with the Mac app. Simply toggle it on in Safari Settings.
Google Chrome
Manifest V3 architecture. Load via Developer Mode and pair with your Mac locally.
Microsoft Edge
Fully compatible with Edge. Smart autofill with zero data leaving your device.
📦 Download Chrome & Edge Packages (v1.4.0)
Manifest V3 standard, versioned filenames for zero-cache updating.
🧭 Safari Native Extension Setup (Released in macOS 1.3)
No separate download required! As long as you have Authenticator installed on your Mac (v1.3+), the Safari Web Extension is already built right into macOS.
- Launch Safari: Open Safari on your Mac;
- Open Settings: Click Safari in the menu bar ➔ Settings... (or press ⌘ + ,);
- Enable Extension: Select the "Extensions" tab, find Authenticator in the list, and check its box;
- Grant Permission: Under permissions on the right, select "Always Allow on Every Website";
- Ready to Use: The Authenticator icon appears in your Safari toolbar immediately! Click it to autofill 2FA codes and passwords.
🌐 Chrome & Edge Offline Installation and Local Pairing
Step 1: Extract and Load into Browser
- Download the extension ZIP above (e.g. authenticator-chrome-extension-v1.4.0.zip) and unzip it into a folder;
- Open chrome://extensions in Chrome (or edge://extensions in Edge);
- Turn on "Developer mode" in the top-right;
- Click "Load unpacked" and select the unzipped directory;
- Pin Authenticator to your browser toolbar for quick access.
Step 2: 1-Click Secure Pairing with macOS App
- Check Mac App Bridge: Open Authenticator on Mac (v1.4+), go to Settings ➔ "Browser Extensions", and ensure the status is green;
- Request Pairing: In your browser, click the Authenticator extension icon and select "Request Pairing";
- Auto-Copied PIN: A pairing window pops up on your Mac and automatically copies the 6-digit PIN to your clipboard;
- Paste to Pair: Switch back to your browser, press ⌘ + V to paste the code, and confirm. Done!
Frequently Asked Questions (FAQ)
Q: What is the difference between Safari and Chrome/Edge extensions?
The Safari extension is a native Apple Web Extension bundled with the macOS app. It shares the secure app sandbox with no local socket required. The Chrome and Edge extensions communicate via an encrypted local loopback bridge (127.0.0.1:52820) with your Mac app, requiring one-time 6-digit PIN verification on first pairing.
Q: The extension says "Unable to connect to Mac local bridge service"?
1. Make sure the Authenticator macOS app is running and updated to version 1.4 or later;
2. In the Mac app, go to Settings ➔ "Browser Extensions" and check the service status. If port 52820 is occupied by other tools, click "Use Alternative Port (52821)" — the extension adapts seamlessly.
Q: How will updates work after official Chrome Web Store and Edge Add-ons listings?
Once approved in the official web stores, you can switch with a single click to enjoy automatic silent updates without losing any paired device authorization.
Authenticator 2FA & Passwords
Tailored for the Apple ecosystem. Free on the App Store.