擴充套件就像是在 Firefox 中安裝應用程式。
它們為 Firefox 新增功能，讓上網變得更快、更安全、更好玩。
HTTPS Everywhere
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
718,688 位使用者
Privacy Possum
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
96,986 位使用者
Decentraleyes
保護您不受「免費」、中心化的內容傳遞網路（CDN）的追蹤。此附加元件可防止您的瀏覽器送出請求到 Google Hosted Libraries 這類的服務，並在本機提供程式庫以達到相同的效果，而不造成網頁錯誤。可補充一般內容封鎖器的功能。
214,457 位使用者
Tomato Clock
Tomato Clock is a simple browser extension that helps with online time management.
41,519 位使用者
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
49,338 位使用者
