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Preview of SJTU jAccount Captcha Helper

SJTU jAccount Captcha Helper by SJTU

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

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About this extension
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
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Permissions and data

Required permissions:

  • Access your data for jaccount.sjtu.edu.cn

Optional permissions:

  • Access your data for jaccount.sjtu.edu.cn

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.5.0
Size
51.33 MB
Last updated
8 days ago (Aug 30, 2026)
Related Categories
  • Privacy & Security
License
MIT License
Version History
  • See all versions
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