Custia by Guillermo
Custia securely autofills saved passwords, passcodes and identities from your private vault.
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About this extension
Custia brings your private vault to Firefox so you can sign in and complete forms without interrupting your workflow.
A Custia account is required. Manage your credentials and private data at https://custia.app.
- Get credential suggestions for the active domain.
- Autofill usernames and passwords on compatible forms.
- View and copy 2FA verification codes when needed.
- Fill compatible identities, addresses, and payment details.
- Sign in with saved passkeys when supported by the website and browser.
- Keep your preferences and session status synchronized.
A Custia account is required. Manage your credentials and private data at https://custia.app.
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Permissions and data
Required permissions:
- Display notifications to you
- Access browser tabs
- Access your data for all websites
Optional permissions:
- Access your data for custia.app
Required data collection, according to the developer:
- Authentication information
- Browsing activity
- Financial and payment information
- Personally identifying information
More information
- Add-on Links
- Version
- 1.1.27
- Size
- 93.12 KB
- Last updated
- 3 days ago (Aug 12, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
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