Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Country Flags & IP Whois
Displays country flag of website's server location, Whois and Geo info on a browser addressbar icon
23,406 users
Imagus
Enlarge thumbnails, and show images/videos from links with a mouse hover.
51,903 users
Bloody Vikings!
Simplifies the use of temporary e-mail addresses in order to protect your real address from spam. Supports inter alia 10minutemail.com and anonbox.net.
15,781 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
3,364,121 users
Classic Theme Restorer (Fx29-56)
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Latest builds on Github! AMO is dead.
239,192 users
Tab Groups
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
65,176 users
TableTools2 - Copy/Sort/Chart/Filter Table&More!
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
8,759 users
Octotree
Add-on to display GitHub code in tree format
8,939 users
谷歌翻译 - 智能云翻译
本插件使用谷歌翻译引擎，可在任意网页中选词进行智能翻译。
1,267 users
Google Translate for Selected Text
Translate selected text with Google's cloud translation service on the same webpage you are visiting.
882 users
Page Translate
Translate whole page using Google Translate
2,688 users
Super Dark Mode
Switch website you want to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
998 users