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Mossy

ExtensionPrivacy & Security6 users
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Overview

Your Mossy vault, with fresh authorization for every secret action.

Mossy brings your self-hosted, end-to-end encrypted password vault to your browser. Find saved logins, fill sign-in forms and save new passwords as you browse. Each action that copies, reveals, fills or saves a secret requires fresh vault authorization. What you can do - Search saved logins and switch between your vaults. - Fill matching logins on websites and capture new passwords. - Sync vault keys securely from a device you already trust. - Protect your local vault key with a passkey or vault password. - Choose a light, dark or system theme. You control website access. Filling and password capture stay disabled until you enable them in Settings and grant the browser permission. Getting started You need a Mossy account, an online self-hosted vault and a device that already holds its vault key. Sign in to the extension, approve this browser if requested, then sync your vault key from your trusted device. Mossy is open source. Website: https://mossy.dayfit.pl Source and setup guide: https://github.com/Day-fit/Mossy

Details

  • Version
    2.0.1
  • Updated
    November 1, 2026
  • Offered by
    Dayfit
  • Size
    1.54MiB
  • Languages
    English (United States)
  • Developer
    Email
    dawid.socha02@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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