Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Iridium for YouTube
YouTube with more freedom
16,460 users
SoundFixer
Lets you fix annoying sound problems in YouTube videos and such. Like audio in one channel only, too quiet or too loud. (Unfortunately, doesn't work on many other websites because of cross-domain issues — but it does work on YouTube.com!)
16,655 users
Forecastfox (fix version)
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
44,708 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
33,719 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.
11,973 users
RSSPreview
Preview RSS feeds in browser
3,658 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
2,613 users
mPage
Simple dashboard-like RSS feed reader.
601 users
Browsec VPN
Best VPN addon for Firefox.
342,512 users
Hoxx VPN Proxy
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
271,759 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.
71,975 users
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
85,483 users
Tree Style Tab
Show tabs like a tree.
135,753 users
New Tab Override (WebExtension)
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
105,642 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
55,328 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
83,859 users