ETag Stoppa EN
claustromaniac · Firefox
Prevents Firefox from storing entity tags by removing ETag response headers unconditionally and without exceptions. Minimalism at its fullest.
<all_urls>），意味着它可以读取你在任意站点的页面内容，包括已登录的页面。这是许多扩展正常工作的必要条件，但也值得你确认来源可信。
简介
WARNING: ETags for resources that were cached prior to installing this will remain intact. You will have to manually clear the cache once to remove existing ETags after installing this extension.
I was using a more general-purpose extension for editing headers, but most of the rules I made were only experimental. The only constant across all my profiles was a rule to remove ETag headers. I decided that I didn't need the extra bells and whistles, and so this diminutive extension was born.
This site has a functional proof of concept that you can use to confirm the extension is working as intended. Note that you may need to whitelist the site in uBlock Origin, because that extension can prevent the HTML document from being cached (depending on your personal settings), and the test relies on that.
Keep in mind that ETags are only *one* of the known tracking/de-anonimizing vectors related to the cache. I am aware of at least three other less straightforward methods to exploit the cache for those purposes. If you are absolutely serious about your privacy, do not rely on this extension. Instead, disable the cache and/or use another extension like Temporary Containers in automatic mode.
Might as well recommend you to take a good look at this project if you haven't already. Even if you already use a user.js file to manage your Firefox settings, I recommend you to at least take a good look at the wiki, which is full of valuable up-to-date information for all Firefox users seeking to tighten our security and privacy.
ETag Stoppa 是做什么的
ETag Stoppa 是一款面向 Firefox 的隐私与安全类扩展，主要用来拦截追踪器、屏蔽广告、管理 Cookie、加固浏览器指纹。官方对它的介绍是：Prevents Firefox from storing entity tags by removing ETag response headers unconditionally and without exceptions. Minimalism at its fullest.在Firefox 附加组件商店（AMO）上，它当前版本 0.5resigned1，评分 4.79（14 人评价），约 107 名用户。
适合什么人用
从功能定位看，ETag Stoppa 更适合在意上网被跟踪、希望减少广告干扰的用户。如果你平时只是偶尔遇到相关需求，用浏览器自带功能也能凑合；但如果这件事每天都发生，装一个专门处理它的扩展通常比手动操作省事得多。需要注意的是它作用于所有网站，装上后建议先观察一两天，确认不影响常用站点的正常使用。
怎么安装 ETag Stoppa
- 打开Firefox 附加组件商店（AMO）上的官方页面；
- 点「添加到浏览器」并确认权限提示；
- 装好后在扩展列表里固定图标，方便随时开关。
本站只做索引与介绍，安装包来自官方商店。如果商店页面提示当前地区不可用，说明该扩展未在你所在区域上架。
常见问题
ETag Stoppa 是免费的吗？
ETag Stoppa 在Firefox 附加组件商店（AMO）免费提供下载。它是浏览器扩展，装上就能直接用，不需要注册账号。
ETag Stoppa 安全吗？
它只申请了 0 项权限，范围比较克制，没有申请「读取所有网站数据」这种大权限。
ETag Stoppa 支持哪些浏览器？
当前收录的版本来自Firefox 附加组件商店（AMO），适用于 Firefox。同一个扩展在其他商店可能有对应版本，但功能与版本号不一定相同。
怎么卸载 ETag Stoppa？
在扩展管理页找到 ETag Stoppa，点移除即可。它在本地保存的设置会一起清掉，不会残留数据。
权限清单 来自 manifest.json 原文
站点访问 1
<all_urls>
接口权限 2
webRequestwebRequestBlocking