简单列举一下自己火狐浏览器上的各种神奇插件。意义在于直接使用物理机时提供适当的保护。

Disable WebRTC

火狐的通病——通过RTC暴露自己真实位置。此款插件就是为了解决这个问题而生。 Hide in the forest, with WebRTC cleanly disabled.Did you know that WebRTC allows JavaScript to access your local IP(s), without any user prompt? [1] This plugin cleanly disables WebRTC.

Double-click Image Downloader

有的时候看到了一些比较好的图片，只需双击，自动下载到~/Downloads文件夹下。 Double-click any image to download it quickly and quietly, or use the Single-click feature!Double-click on images to download them! Features optional single-click mode: hover the cursor over an image to get a download button ability to rename images and store them in subfolders. Both names can be specified with variables: a counter (creating a sequence), the source website (per-website folders), the tab’s title and the original filename preview toaster popup that shows you the image once it’s downloaded, or an error message. Click this popup to open the image’s folder in a new tab in Firefox domain exclusion list with realtime validation

Download YouTube Videos as MP4

下载Youtube视频的利器，下载可以在“下载”中显示出来，不像另一个1 click youtube download，根本不显示进度，而且下载完后还会莫名消失。 “Download YouTube Videos as MP4” adds a button to the YouTube video pages, so you can download videos. The download button is displayed below the video player and it looks like any other YouTube button. The extension doesn’t include ads and only links to YouTube’s download URLs.

Easy Screnshot

截图工具。 You can capture a screen shot by selecting an area or capture the whole/visible webpage. Then edit and save it as an image file.Capture a screenshot of the whole webpage, and save in your desktop in default.

FoxyProxy Standard

都懂的~非常使用的免费插件（其作者就是一个卖代理的） FoxyProxy – Premier proxy management for FirefoxFoxyProxy is a Firefox extension which automatically switches an internet connection across one or more proxy servers based on URL patterns. Put simply, FoxyProxy automates the manual process of editing Firefox’s Connection Settings dialog. Proxy server switching occurs based on the loading URL and the switching rules you define. Animated icons show you when a proxy is in use. Advanced logging shows you which proxies were used and when. QuickAdd makes it a snap to create new URL patterns on-the-fly. FoxyProxy is fully compatible with Portable Firefox, has better support for PAC files than Firefox itself, and is translated into more than 34 languages.

HTTPS-Everywhere

Block掉非https的内容。不过好像火狐自带扩展中没有，得自己去官网下。 Encrypt the Web! Automatically use HTTPS security on many sites.

NoScript

阻挡潜在的JS危险。 Extra protection for your Firefox: NoScript allows JavaScript, Java (and other plugins) only for trusted domains of your choice (e.g. your home-banking web site). This whitelist based pre-emptive blocking approach  prevents exploitation of security vulnerabilities (known and even unknown!) with no loss of functionality… Experts will agree: Firefox is really safer with NoScript :-)Winner of the “PC World World Class Award”, this tool gives you with the best available protection on the web. It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site, guarding your “trust boundaries” against cross-site scripting attacks (XSS), cross-zone DNS rebinding / CSRF attacks (router hacking), and Clickjacking attempts, thanks to its unique ClearClick technology. It also implements the DoNotTrack tracking opt-out proposal by default, see https://hackademix.net/2010/12/28/x-do-not-track-support-in-noscript/. Such a preemptive approach prevents exploitation of security vulnerabilities (known and even unknown!) with no loss of functionality… Experts do agree: Firefox is really safer with NoScript