瀏覽可用來自訂 Firefox 的強大工具與功能，讓瀏覽器有您的風格。
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can pause or turn off the blocker quickly. Completely open source.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive.is, Google, Bing, Yandex, Gigablast, WebCite, Sogou, Memento, Naver and Yahoo Japan.
Makes a Web Page readable.
Fight back against advertising surveillance
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。
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.
擁有大量有趣的功能增進您的 YouTube™ 使用者體驗。
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more.
Build, save and share beautiful Firefox themes.