Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Tab notifier
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
1,446 users
Mate Translate – translator, dictionary
Your all-in-one translator for web pages, highlighted text & Netflix subtitles. Translate and learn words in 103 languages.
31,871 users
Undo Close Tab
Allows you to restore the last closed tab with just one button click and gives you access to the list of recently closed tabs in the button context menu.
28,660 users
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
24,963 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.
11,289 users
RSSPreview
Preview RSS feeds in browser
3,561 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
2,497 users
mPage
Simple dashboard-like RSS feed reader.
578 users
Browsec VPN
Best VPN addon for Firefox.
336,626 users
Hoxx VPN Proxy
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
264,086 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.
71,310 users
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
83,446 users
Tree Style Tab
Show tabs like a tree.
129,303 users
New Tab Override (WebExtension)
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
98,858 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
52,215 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
80,544 users