SJTU jAccount Captcha Helper Firefox

SJTU jAccount Captcha Helper

By: SJTU Add-on
Recognizes and fills SJTU jAccount login captchas locally, with optional encrypted credential storage for auto-login.

Features & Capabilities

你是否不胜 jAccount 频繁登录还要输验证码的烦扰?这个适用于 Firefox 的扩展正适合你:打开 SJTU jAccount 登录页后,扩展在浏览器本地识别并填写验证码,无需任何第三方服务。搭配可选的"自动登录"功能,可以做到打开登录页即完成登录。 功能特性:

  • 本地验证码识别:内置 ddddocr 的 ONNX 模型,通过 onnxruntime-web(WASM)在浏览器内推理,验证码图片不离开本机
  • 自动填写:监测登录页验证码出现或刷新,识别后自动填入输入框
  • 可选自动登录:默认关闭;开启后可将 jAccount 账号密码经 AES-GCM 加密保存在本机,登录页加载后自动填充并提交
  • 克制的提交策略:仅当用户名、密码、验证码全部就绪时才延迟 500 ms 点击登录;每次页面加载最多自动尝试 3 次
  • 最小权限:只申请 storage 权限和 jaccount.sjtu.edu.cn 的站点权限

User Growth & Download Statistics

Manifest V3 Add-on
By:
SJTU
Daily users:
1
Version:
0.5.0 Last updated: 2026-09-02
Version code:
6448292
Creation date:
2026-08-30
Firefox add-on GUID:
sjtu-autologin@sj-tu.com
Firefox add-on numeric ID:
3062872
Weekly download count:
2
Firefox on Android:
No
Risk:
Low risk impact High risk likelihood
Permissions:
Host permissions:
  • https://jaccount.sjtu.edu.cn/*
Content scripts matches:
  • jaccount.sjtu.edu.cn
Size:
51.33MB
Email:
ad*****@sj-tu.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-10
Compare stats and ranking:

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:
SJTU
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/sjtu-autologin/
Email:
ad*****@sj-tu.com
Website:
https://jaccount.sj-tu.com

Is SJTU jAccount 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.

SJTU jAccount Captcha Helper requires very minimum permissions.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
  • Low ******* ****** ** *** ********* ******** ******
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.

SJTU jAccount 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.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best SJTU jAccount Captcha Helper Alternatives

Here are some Firefox add-ons that are similar to SJTU jAccount Captcha Helper: