... Firefox vault path , not the assistant index path. How they re encrypted At rest, usernames and passwords in logins.json are  not stored in plaintext . They re encrypted through Firefox s  NSS / Login Manager  cryptostack, with key material in your profile (often integrated with the  OS keychain  on macOS and Windows where supported). You can also set a  Primary Password  for an extra unlock step. We didn t invent a parallel ... ... feed your imported password vault into assistant training or semantic memory.  If you voluntarily put secrets into chat, or a page visibly shows them, that s a different path and we think you should know that. Onboarding copy