2FA Authenticator by cwl

2FA Authenticator is a lightweight, privacy-first Firefox extension for generating two-factor authentication (TOTP) codes directly in your browser.

Pair your phone in seconds using a QR code or link, scan 2FA secrets with your phone camera, and receive them instantly in your browser without installing any mobile apps.

Key Features:

- Instant Mobile Sync: Scan 2FA QR codes using your phone's browser camera via encrypted, peer-to-peer WebRTC connections.

- Google Authenticator Import: Full support for otpauth-migration:// export QR codes and standard otpauth:// secret URIs.

- 100% Private & Local: All your secret keys are encrypted and saved locally in browser storage—never sent to cloud servers.

- Manual Setup Option: Quickly add standard Base32 secret keys manually.