Quickstart: Browser Extension

This guide walks you through installing the QuantPass Chrome extension, creating your account and first vault item, and using autofill on a login page. The entire process takes under five minutes.

Step 1 — Install the Extension

  • Open Google Chrome (version 114 or later).
  • Visit the QuantPass listing on the Chrome Web Store and click Add to Chrome.
  • When prompted, click Add extension to confirm.
  • The QuantPass icon will appear in your Chrome toolbar. If you don't see it, click the puzzle piece icon in the top-right corner of Chrome and pin QuantPass.

Step 2 — Create Your Account

  • Click the QuantPass icon in your toolbar to open the extension popup.
  • Click Create Account.
  • Enter your email address and click Continue.
  • QuantPass will generate a Dilithium2 keypair directly in your browser. This is your quantum-safe identity. Your private key is stored locally in chrome.storage.local and never transmitted to our servers.
  • You will receive a verification email. Click the link to verify your address and complete account setup.
Zero-knowledge note: QuantPass authenticates you by verifying a digital signature against your public key. No password, passphrase, or shared secret is transmitted during login.

Step 3 — Save Your First Credential

  • Navigate to any website with a login form — for example, github.com.
  • Enter your username and password as normal and log in.
  • QuantPass will detect the login form and display a save prompt in the top bar of your browser: "Save this credential to QuantPass?"
  • Click Save. QuantPass encrypts the credential using AES-256-GCM with a key derived from your public key fingerprint and stores the ciphertext in your vault.
Alternatively, you can save a credential manually:
  • Click the QuantPass icon in your toolbar.
  • Click + Add Item.
  • Fill in the site name, username, and password fields, then click Save.

Step 4 — Autofill a Credential

  • Navigate to the login page of a site where you have a saved credential.
  • Click on the username field. QuantPass will detect the form and display an inline autofill suggestion with your saved username.
  • Click the suggestion to autofill both the username and password fields instantly.
Shadow DOM security: The QuantPass autofill UI is injected into a mathematically isolated Shadow DOM. The host page's JavaScript and CSS cannot read, manipulate, or scrape the QuantPass credential menu.

What's Next?

  • Organize your vault — create multiple vaults for personal and work credentials from the extension popup.
  • Enable enterprise SSO — if your organization uses Okta or Microsoft Entra ID, enter your company email on the login screen to be routed through your IdP automatically.
  • Set up the Admin Console — if you're an IT administrator, proceed to the Admin Console Quickstart to configure your organization's settings and invite users.