How to Add Google Authenticator to Google Chrome This article will show how to add the Google Authenticator extension to the Google Chrome browser. 1. Go to this link: https://chrome.google.com/webstore/detail/gauth-authenticator/ilgcnhelpchnceeipipijaljkblbcobl 2. Click "Add to Chrome". 3. Click "Add Extension" to confirm. 4. A pop up will appear in the top right to show you have successfully added the extension.