Explore powerful tools and features to customize Firefox and make the browser all your own.
Advanced Feed Reader - Read news, blogs, social media or any RSS/Atom/RDF source.
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
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.
A secure and free password manager for all of your devices.
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.
Automatically learns to block invisible trackers.
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Build, save and share beautiful Firefox themes.
Makes a Web Page readable.