Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
YouTube High Definition
YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
181,128 users
Integrated Inbox for Gmail and Google Apps
Tired of having multiple tabs open just to view your favorite Google services and other Apps like Feedly, Evernote, Twitter and more? Now you can see them right from your Gmail Inbox. Install now or visit www.integratedinbox.com for more info.
2,823 users
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
135,136 users
Ecosia — The search engine that plants trees 🌱
Ecosia is a search engine that uses 80% of its profits from ad revenue to plant trees. By searching with Ecosia you can help the environment for free. This extension adds Ecosia.org as the default search engine to your Firefox browser. Give it a try!
297,522 users
Brief
Brief makes reading RSS feeds as easy and intuitive as it gets. Designed to have exactly the right set of features, it is powerful and simple at the same time. Feeds are presented on a seamless, interactive page which let's you bookmark and tag items with a single click.
11,249 users
RSSPreview
Preview RSS feeds in browser
3,531 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
2,483 users
mPage
Simple dashboard-like RSS feed reader.
574 users
Browsec VPN
Best VPN addon for Firefox.
335,048 users
Hoxx VPN Proxy
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
262,724 users
SetupVPN Lifetime Free VPN
Unblock any blocked website in your country, school or company. SetupVPN changes your IP address and location with just single click! It's free and easy to use. Setup your VPN now.
70,661 users
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
83,078 users
Tree Style Tab
Show tabs like a tree.
128,766 users
New Tab Override (WebExtension)
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
98,744 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
51,985 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
80,313 users