Extensions
Explore powerful tools and features to customize Firefox and make the browser all your own.
Iridium for YouTube
YouTube with more freedom
12,492 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!
231,017 users
Resurrect Pages
Dead pages, broken links, the scourge of the internet. Powerhouse sites like Slashdot and Digg can bring a server to its knees. What do we do when a page is dead but we still want to see it? Call in the clerics, and perform a resurrection...
10,045 users
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
133,292 users
Reopen Closed Tabs
Left click reopens the last closed tab. Right click to see the list of recently closed tabs.
1,589 users
Incognito Adblocker
Ad Blocking, remastered. Incognito Adblocker took all of the best ad blocking and privacy protection features you’d expect in an adblocker extension and advanced them to create the best adblock extension yet.
5,155 users
Flappy Bird New Tab
Play game Flappy Bird when you open a new tab. Try to fly the bird as far as you can without hitting a pipe!
583 users
YouTube Adblock
Best adblock for YouTube, faster and lighter than other ad blockers. It automatically hides all kind of YouTube ads (YouTube banner ads and YouTube video ads).
10,112 users
Complete YouTube Downloader
The Complete YouTube Downloader, Download every YouTube Video in MP3, MP4 and WEBM (Up to 8K! and HDR), M4A and 3GP Formats. Also Subtitles and Thumbnails can be downloaded!
3,453 users
Rapid Video Downloader
Download videos while browsing Internet. This simple video downloader tool is free, easy to use and very fast.
2,625 users
Privacy Possum
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
16,432 users
BlockSite
BlockSite is an extension, which automatically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.
76,182 users