Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Awesome Screenshot Plus - Capture, Annotate & More
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
281,258 users
Ecosia — The search engine that plants trees!
Ecosia is a search engine that uses 80% of its profits from ad revenue to plant trees. By searching with Ecosia you can help the environment for free. This extension adds Ecosia.org as the default search engine to your Firefox browser. Give it a try!
243,924 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
113,696 users
QR Code Image Generator
Create a QR code of the selected text, current url or hyperlink. Also possible to create a QR Code from free text within Firefox. Now with UTF8 support.
19,406 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.
238,803 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.
65,087 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.
8,738 users
Octotree
Add-on to display GitHub code in tree format
8,888 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。
1,137 users
Page Translate
Translate whole page using Google Translate
2,501 users
ErrorZilla Plus
This extension is a replacement of Firefox official error page, which adds some useful tools to aid your troubleshooting. The tools include: - Google Cache (view the page cached by Google) - Coralize (use Coral CDN proxy to connect again) - Wayback (view an earlier version of this page) - Ping (use a server to ping the target server) - Trace (trace the network route from you to the server) - Whois (look up who owns the website) - Proxify (use your custom web proxy to connect)
3,231 users
Super Dark Mode
Switch website you want to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
922 users