Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
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.
78,743 users
Default Bookmark Folder
Allows you to choose the default bookmark location folder and quickly bookmark pages via a dedicated icon.
13,518 users
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
11,814 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
77,234 users
Privacy Badger
Automatically learns to block invisible trackers.
1,415,465 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
540,100 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.
78,743 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
8,776,358 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
26,273 users
Simple Tab Groups
Create, modify, and quickly change tab groups
97,743 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
636,985 users
ClearURLs
Removes tracking elements from URLs
400,251 users