# Password Strength Checker

> Check and warn about weak passwords on websites.

Canonical page: [https://chrome-stats.com/d/password-strength-checker-web](https://chrome-stats.com/d/password-strength-checker-web)

## Overview

- **ID:** `password-strength-checker-web`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Check for weak passwords
- **Category:** web-development
- **Version:** 1.0
- **Last updated:** 2025-03-17
- **First published:** 2025-03-15
- **Size:** 30 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/password-strength-checker-web/)

## Description

Weak password checking and warning on websites helps users improve security by analyzing the strength of passwords entered. The system will evaluate factors such as length, character diversity (uppercase, lowercase, numbers, special characters), and password popularity.

## Rankings

- #137,537 — Overall

## Permissions and access

### Permissions

- `activeTab`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate 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).

## Similar extensions and apps

- [Password Strength Checker Rv](https://chrome-stats.com/d/password-strength-checker-rv)
- [Password Strength Checker](https://chrome-stats.com/d/password-strength-checker-new) — 1 users
- [Password Strength Checker](https://chrome-stats.com/d/password-strength-checker)
- [Password Strength Checker](https://chrome-stats.com/d/pass-strength-checker) — 28 users
- [Pass Check](https://chrome-stats.com/d/pass-check) — 6 users
- [Password Analyzer](https://chrome-stats.com/d/password-analyzer) — 29 users
- [Pwd Strength](https://chrome-stats.com/d/pwd-strength) — 6 users
- [Password Strength Notifier](https://chrome-stats.com/d/password-strength-notifier)
- [Password Strength](https://chrome-stats.com/d/password-strength) — 2 users
- [Pass Strength](https://chrome-stats.com/d/pass-strength) — 6 users
- [Secure Check](https://chrome-stats.com/d/secure-check) — 26 users
- [Secure Password Meter](https://chrome-stats.com/d/secure-password-meter)

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Source: [Chrome-Stats](https://chrome-stats.com/d/password-strength-checker-web)