Authenticator
Authenticator generates 2-Step Verification codes in your browser
...Use it to add an extra layer of security to your online accounts. Always keep a backup of your secrets in a safe location. Encrypting your secrets is strongly recommended, especially if you are logged into a Google account. Back up your secrets to a file, Google Drive, Microsoft OneDrive, or Dropbox. Sync your secrets with your Google Account. Available for Chrome, Firefox, and Microsoft Edge. Import data from Google Authenticator's official mobile App.