谷歌浏览器，火狐浏览器，这两个虽然是开源免费的，但是表面上和暗地里后台收集用户信息太多太多，
谷歌和火狐的背后都是商业公司支撑，金钱利益至上，
从火狐浏览器的首选项那里，已经明确地告示用户，你浏览哪个网页或网站需要由他们判断是否是安全的，如果是恶意网站那么他们就可以立刻阻止，它们说这是为了保护你，
如此，用户还有什么隐私可言？
当然，你可以（选项）选择不用他们管，
各种版本的火狐浏览器 Firefox ESR 官方下载：https://www.mozilla.org/en-US/firefox/organizations/all/
选择 Chinese (Simplified) 中文 (简体) 那一行下载的是简体中文版本，
注意：火狐浏览器，必须从海外英文官方网站上下载原版，绝对不可从中国大陆的网站下载那个所谓 “智谋火狐”，那是一个被改编了的中国版，
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KDE项目 原生的开源免费浏览器 Falkon 要干净得多，但是 Falkon 3.1.0 版本在 Windows 7 上面安装时，系统提示缺少一个文件，
开放源代码的 Falkon 浏览器，官方网站 https://www.falkon.org/
官方英文简介：
https://www.falkon.org/about/
About Falkon
Falkon is a KDE web browser using QtWebEngine rendering engine, previously known as QupZilla. It aims to be a lightweight web browser available through all major platforms. This project has been originally started only for educational purposes. But from its start, Falkon has grown into a feature-rich browser.
Falkon has all standard functions you expect from a web browser. It includes bookmarks, history (both also in sidebar) and tabs. Above that, it has by default enabled blocking ads with a built-in AdBlock plugin.
History
The very first version of QupZilla has been released in December 2010 and it was written in Python with PyQt4 bindings. After a few versions, QupZilla has been completely rewritten in C++ with the Qt Framework. First public release was 1.0.0-b4.
Until version 2.0, QupZilla was using QtWebKit. QtWebKit is now deprecated and new versions are using QtWebEngine.
Since version 3.0, QupZilla is no longer developed and new version are released with Falkon name as a KDE project.
