Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
76 486 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
7 950 225 users
Stylus
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.
110 299 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
27 563 users
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.
68 502 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
456 257 users
Decentraleyes
Kaitseb sind "tasuta", tsentraliseeritud sisu edastamisest tuleneva jälitamise vastu. Keelab taotlused võrgustikesse nagu Google Hosted Libraries, asendades need kohalike failidega, et saidid jätkuvalt töötaksid. Täiendab tavalisi sisublokeerijaid.
260 633 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
20 191 users
SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
54 086 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
353 036 users