Claspt — Password Auto-Fill by Varinder Singh
Fills logins, addresses and signup forms from the Claspt desktop app, shows two-factor codes and holds passkeys. Free. Your vault stays on your computer: the extension talks only to the Claspt app running beside it.
Available on Firefox for Android™Available on Firefox for Android™
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About this extension
Claspt is a password manager and notes app that keeps your vault as files on your own computer. This extension brings it into Firefox.
The extension needs the Claspt desktop app (4.1 or later) running on the same computer. It connects only to that app, at 127.0.0.1, and sends nothing to any other server. Download the desktop app free for macOS, Windows or Linux at https://claspt.app/download/
- Fills logins on the sites you visit, from the matching entries in your vault.
- Fills addresses and signup forms from saved identities.
- Shows two-factor codes beside the password, and holds passkeys for sites that use them.
- Saves a new login the moment you submit it, and generates strong passwords.
- Free, on the free plan as on Pro.
The extension needs the Claspt desktop app (4.1 or later) running on the same computer. It connects only to that app, at 127.0.0.1, and sends nothing to any other server. Download the desktop app free for macOS, Windows or Linux at https://claspt.app/download/
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Permissions and data
Required permissions:
- Input data to the clipboard
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 3.1.1
- Size
- 567.53 KB
- Last updated
- 4 days ago (Sep 25, 2026)
- Related Categories
- License
- Custom License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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