Captcha Helper

Name: Captcha Helper
Author: Wang Hongshuo

By: Wang Hongshuo Add-on

Recognize common static text and one-step arithmetic CAPTCHAs offline, then fill safely or ask for confirmation.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-09-08

Version:

1.3.1

Last updated: 2026-08-30

Features & Capabilities

Captcha Helper recognizes common static text CAPTCHAs entirely on your device.

Supported CAPTCHA types:

Digits
Uppercase and lowercase English letters
Alphanumeric strings
One-step integer arithmetic using +, -, *, /, x, X, ×, or ÷

Start recognition from the extension popup, an image context menu, or the configured mouse shortcut. When the result is reliable and the page contains one matching empty input field, Captcha Helper can fill it automatically. Low-confidence or ambiguous results are left for you to review.

Recognition and automatic filling are separate decisions. The extension never clicks a submit button, never submits a form, and does not replace existing input without confirmation.

All recognition runs locally using the model bundled with the extension. CAPTCHA images and recognition results are not uploaded. There is no account, advertising, analytics, telemetry, remote OCR service, or runtime model download.

You control website access. Grant access to all HTTP/HTTPS websites or maintain a list of selected sites. Settings, permission state, and sanitized diagnostic records remain in your browser.

Captcha Helper is open-source software released under the MIT License.

User Growth & Download Statistics

Add-on

By:

Wang Hongshuo

Daily users:

Version:

1.3.1 Last updated: 2026-08-30

Version code:

6441497

Creation date:

2026-08-27

Firefox add-on GUID:

captcha-helper@hongshuo-wang.github.io

Firefox add-on numeric ID:

3061136

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Size:

5.43MB

Email:

ho*****@163.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-08

Compare stats and ranking:

Ranking

# 112,281 ▼ 912

Other rankings

#55 in captcha keyword 43

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Wang Hongshuo

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/captcha-helper/

Email:

ho*****@163.com

Website:

https://github.com/hongshuo-wang/local-captcha-solver/issues

Is Captcha Helper Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Captcha Helper requires very minimum permissions.

Risk impact analysis details

High Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Captcha Helper is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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