Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
247,829 users
Search by Image
Reverse image search using various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
83,083 users
EPUBReader
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
159,780 users
SearchPreview
The main feature of SearchPreview is to enhance your search results pages. It inserts site preview images (thumbnails) and popularity ranks into Google™, DuckDuckGo™, Yahoo™ and Bing™ searches.
34,670 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.
214,349 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
139,830 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.
30,859 users
LASER CAT
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
3,716 users
User-Agent Switcher and Manager
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
363,365 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
247,829 users
LASER CAT
This is probably a laser cat add-on so you can shoot laser cat lasers at things.
3,716 users
Image Search Options
Image Search Options provides a set of highly customizable reverse image search context menu options.
59,890 users