# ShieldSign

> \*\*Protect your passwords at a glance.\*\* ShieldSign displays a trust banner on your real login pages to make phishing instantly visible. Free, open-source, no data leaves your browser.

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

## Overview

- **ID:** `shieldsign`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** SingeQuantique
- **Category:** privacy-security
- **Daily users:** 2
- **Version:** 1.2.5
- **Last updated:** 2025-12-16
- **First published:** 2025-11-16
- **Size:** 3.89 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/shieldsign/)

## Description

🛡️ ShieldSign — The simplest way to <strong>know where you can enter your password</strong>

Knowing if a login page is real or fake should be obvious.
Today, it's no longer the case: phishing pages have become indistinguishable to the naked eye.

<strong>ShieldSign solves this problem.</strong>
The extension automatically validates safe login pages and displays a clear, visible banner that's impossible to imitate.
<strong>If ShieldSign doesn't confirm the page, don't type your password.</strong>

🎯 Why is this really useful?

Because today we get tricked <em>not by carelessness</em>, but because a fake site can be <strong>perfectly identical</strong> to the real one.
The only important question becomes:

👉 <em>"Can I type my password here?"</em>

With ShieldSign, the answer is <strong>visual, immediate and reliable</strong>.

✨ What ShieldSign does for you

✔️ Automatically identifies login pages

As soon as a site contains a password field, ShieldSign checks the domain.

✔️ Displays an <strong>impossible to imitate</strong> validation banner

3 security modes:
<ul><li><strong>Discreet badge</strong></li><li><strong>Personal keyword</strong> known only to you</li><li><strong>Random code changing with each visit</strong> (recommended)</li></ul>
An attacker <strong>cannot reproduce</strong> this code or keyword.
Even a perfect copy of the page will be unmasked in a second.

✔️ Works with lists: community, personal, enterprise
<ul><li>A <strong>community list</strong> of trusted domains</li><li>Your <strong>own favorite domains</strong></li><li>Enterprise option: a <strong>list pushed by your organization</strong>, to secure internal access</li></ul>
✔️ Automatically adds your legitimate sites

Every time you log in to a new site, ShieldSign can offer to save it.
<strong>You have nothing to manage: the extension learns with you.</strong>

✔️ 100% local, 100% private
<ul><li>No data sent to a server.</li><li>No tracking.</li><li>The list of sites you use stays <strong>in your browser</strong>, only as URLs.</li></ul>

🔒 Why is it safer than an HTTPS padlock?

Because <strong>all modern phishing sites also have a padlock</strong>.
Because "looking at the URL" is no longer realistic: tired, rushed, stressed... humans get tricked.

ShieldSign gives you <strong>an external visual marker</strong>, safe, constant, reliable.

You no longer wonder:
<blockquote>"Is this the right site?"
You simply look:
<strong>Is the banner there? Then it's good.</strong></blockquote>

🎨 Simple, customizable, designed for everyday use
<ul><li>Customizable colors or gradients</li><li>Multiple fonts</li><li>Discreet badge or visible banner</li><li>Automatic updates</li><li>Clean, clear interface, no ads</li></ul>

🏢 For businesses

ShieldSign allows organizations to:
<ul><li>push their <strong>official list of internal domains</strong></li><li>drastically reduce the risk of targeted phishing</li><li>without backend, without cost, without infrastructure</li><li>open-source and auditable</li></ul>

🧭 Why choose ShieldSign?

Because it's:
<ul><li><strong>Free</strong></li><li><strong>Open-source</strong></li><li><strong>Privacy-respecting</strong></li><li><strong>Reliable</strong></li><li><strong>Designed for humans, not just experts</strong></li></ul>
ShieldSign doesn't replace your vigilance, but it removes uncertainty — which is precisely what attackers are looking for.

<strong>You'll finally know where you can enter your password, stress-free.</strong>

<strong>BULLET POINTS ("Features")</strong>
<ul><li>Automatic detection of login pages</li><li>Impossible to imitate validation banner</li><li>3 security modes: badge, keyword, random code</li><li>Community lists + personal list</li><li>Enterprise mode (managed lists)</li><li>Automatic addition of your sites</li><li>No data transmitted – 100% local</li><li>Open-source and free</li><li>Full customization: colors, font, banner style</li><li>Automatic updates of remote lists</li></ul>

## Rankings

- #64,761 — Overall
- #160 — sign
- #224 — password-protected

## Permissions and access

### Permissions

- `storage`
- `activeTab`
- `webRequest`
- `alarms`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate 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 has low user count. Unpopular extensions 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).

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