Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
111,243 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
421,713 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome. Note: Android users seeing "unavailable on your platform", go to https://addons.mozilla.org/en-US/android/addon/google-search-fixer/
743 users
Video Background Play Fix
Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.
3,073 users
DuckDuckGo Privacy Essentials
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the Internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search and more.
1,204,988 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,049,399 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
2,179,655 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
4,560,388 users
HTTPS Everywhere
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
698,705 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
421,713 users
![Animated Stars at Night [Blue]](https://addons.cdn.mozilla.net/user-media/version-previews/full/2855/2855185.png?modified=1596111848)
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
931,365 users
Bitwarden - Free Password Manager
A secure and free password manager for all of your devices.
181,183 users
RoboForm Password Manager
RoboForm, the #1 ranked Password Manager makes your life easier by remembering passwords and logging you into websites automatically
80,166 users
MYKI Password Manager & Authenticator
Offline P2P encrypted password manager & authenticator. Auto-fill Two-Factor Authentication (2FA) tokens.
3,497 users