# Attest

> A Nostr signer for Firefox. Holds your key so websites never see it, and asks before it signs anything.

Canonical page: [https://chrome-stats.com/d/attest](https://chrome-stats.com/d/attest)

## Overview

- **ID:** `attest`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** NostrComments
- **Category:** privacy-security,social-communication
- **Daily users:** 1
- **Version:** 1.23.1
- **Last updated:** 2026-09-08
- **First published:** 2026-09-01
- **Size:** 1011 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/attest/)
- **Website:** [https://github.com/briskness-byte/attest/issues](https://github.com/briskness-byte/attest/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/attest/privacy/](https://addons.mozilla.org/firefox/addon/attest/privacy/)

## Description

Attest holds your Nostr key so that a website never has to see it, and asks you before it signs anything on your behalf.

<strong>What it does</strong>
<ul><li>Signs Nostr events for any site that asks, one permission at a time</li><li>A global on/off switch, so you can silence it everywhere without uninstalling</li><li>Refusals that expire — five minutes, an hour, or for good — and can be found and undone</li><li>Optional PIN protection: your keys are encrypted at rest, and you choose how long the PIN is remembered</li><li>Light and dark, following your system or set by hand</li></ul>
<strong>Where it comes from</strong>

Attest is a fork of nos2x-fox by Diego H. Gurpegui, which is itself a Firefox port of nos2x by fiatjaf. Almost all of the code is theirs, and like the original it is public domain under the Unlicense.

It differs in a handful of ways, listed in the repository — the largest being a fix for a flaw that let any website read the PIN protecting your private key.

<strong>No build step you have to trust</strong>

The file that ships is the file in the repository. There is no minifier and no obfuscator, so what you install can be compared line for line with the source.

Source: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/6c317a6d8209ee3ba90d5e48b8a2f4b782997286617364272996f740c2f122d9/https%3A//github.com/briskness-byte/attest" rel="nofollow">https://github.com/briskness-byte/attest</a>

## Rankings

- #127,617 — Overall
- #226 — uninstall

## Permissions and access

### Permissions

- `storage`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Nostr Connect](https://chrome-stats.com/d/nostr-connect) — 579 users, 4.20 / 5
- [Signstr: A Nostr Signer for your Browser](https://chrome-stats.com/d/signstr-a-nostr-signer) — 11 users
- [nos2x](https://chrome-stats.com/d/nos2x) — 184 users, 5.00 / 5
- [Nostr Signer (formerly Nostr Connect)](https://chrome-stats.com/d/nostr-signer) — 11 users
- [nos2x-fox](https://chrome-stats.com/d/nos2x-fox) — 848 users, 4.60 / 5
- [autograph](https://chrome-stats.com/d/autograph-nostr) — 1 users
- [Nostr Map Signer](https://chrome-stats.com/d/nostr-map-signer) — 2 users
- [Soapbox Signer](https://chrome-stats.com/d/soapbox-pub-signer) — 10 users, 5.00 / 5
- [Sidecar | A Classy Nostr Signer](https://chrome-stats.com/d/sidecar-a-classy-nostr-signer) — 3 users
- [Authenticator](https://chrome-stats.com/d/auth-helper) — 145,840 users, 4.26 / 5
- [Diogel](https://chrome-stats.com/d/diogel) — 1 users
- [Private Notes](https://chrome-stats.com/d/private_notes) — 143 users, 4.68 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/attest)