# 知乎助手 - Chrome Extension Security Audit & Unpacked ZIP Download

> **CRX8 Security Inspection & Official Download Hub**  
> **Category**: Productivity | **Version**: 3.1.2 | **Rating**: 4.9 / 5.0 (5400 ratings) | **Users**: 250,000+  
> **Safety Score**: 9.9 / 10 (极高 (零远程网络请求 / 纯本地 DOM 注入))  
> **Updated**: 2026年11月 | **Package Size**: 420 KiB  
> **Official Page**: https://crx8.com/ext/zhihu-enhancement

## Overview & Verified Verdict
Verified Productivity extension. Security Score: 9.9/10, Rating: 4.9★ (5400 reviews).

## Permissions & Manifest Security Audit
- **Security Score**: 9.9 / 10
- **Auditor Verdict**: Low risk. Full compliance with Chrome Web Store MV3 guidelines.
- **Manifest Permissions**: [{"perm":"zhihu.com 域访问","desc":"优化知乎页面排版与过滤广告元素","risk":"核心功能"}]

## Key Features & Highlights
- 一键屏蔽未登录时的遮罩弹窗，免登录畅读全站万字长文
- 强力拦截“盐选专栏”开头引流假回答与带货小卡片
- 回答内容一键导出为纯净 Markdown / 高清长图或 PDF 格式用于知识库归档
- 时间线按时间严格升序排列，过滤算法强制推荐的热搜八卦

## Pros & Cons
### Pros
- 体积极其轻量（不足半兆），加载零延迟
- 纯本地开源无后门，不收集任何用户浏览偏好与 Cookie

### Cons
- 如果知乎官方前端底层框架大幅重构，部分 CSS 屏蔽规则可能需要等待版本热更

## Recommended Alternatives
- 知乎去广告油猴脚本: 功能类似，但独立扩展更新更稳定，不会与其他油猴脚本产生冲突

## Direct Download (Official Google Stream)
- **Native CRX Format (Official Source)**: [Download .crx](https://crx8.com/download/zhihu-enhancement.crx)
- **Unpacked ZIP Format (Load Unpacked)**: [Download .zip](https://crx8.com/download/zhihu-enhancement.zip)
- **Open Source Repository**: [https://github.com/zhihu-helper/zhihu-enhancement](https://github.com/zhihu-helper/zhihu-enhancement)

## How to Install Unpacked Extension (.ZIP)
1. Download the `.zip` archive above and extract it to a local folder;
2. Open Chrome or Edge browser, navigate to `chrome://extensions`, and enable **Developer mode** in the top right;
3. Click **Load unpacked** in the top left, and select the extracted folder to run immediately.