Featured Extensions

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Duplicate Tabs Closer Featured

Detects and automatically closes duplicate tabs.

Rated 4 out of 5 stars (46)
7,262 users

ipFood Requires Restart Featured

Simulate the use of a series of proxy changing at each new connection.

Rated 4 out of 5 stars (8)
78,226 users

Clean Uninstall Featured

Uninstall an extension and clean its fingerprints (such as stored preferences)

Rated 5 out of 5 stars (18)
6,107 users

NoScript Security Suite Requires Restart Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,550)
1,992,063 users

Gmail™ Notifier + Featured

Gmail™ Notifier Plus alerts you of new email messages. Users can also read or reply to emails, delete or mark them as read, all without having to open a new window.

Rated 4 out of 5 stars (79)
34,028 users

Panel View for Google™ Keep Featured

A handy and reliable extension designed to store your notes, lists and photos.

Rated 4 out of 5 stars (24)
10,688 users

Video Downloader Prime Featured

Easily download most popular video formats.

Rated 4 out of 5 stars (55)
47,275 users

Ecosia — The search engine that plants trees! Featured

Ecosia is a search engine that donates 80% of its surplus income to planting 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. Give it a try!

Rated 5 out of 5 stars (148)
220,874 users

Bluhell Firewall Featured

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (326)
89,598 users

Reader Featured

Reader is the ultimate Reader tool for Firefox.

Rated 5 out of 5 stars (65)
30,718 users

Reload Plus Featured

Supercharge your reload button and hotkeys!

Rated 5 out of 5 stars (85)
15,827 users

History Submenus II Featured

Add sub-menus to History Menu for previous days' history.

Rated 5 out of 5 stars (50)
4,063 users

User-Agent Switcher Featured

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (34)
60,616 users

QuickMark Featured

A quick and minimalistic way to create bookmarks.

Rated 5 out of 5 stars (50)
10,946 users

Instant Translate: Select and Translate Featured

Translation, text-to-speech, transliteration on pages and in the pop-up for 100+ languages.

Rated 4 out of 5 stars (78)
18,468 users

YouTube High Definition Featured

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.

Rated 5 out of 5 stars (224)
550,330 users

Tab Groups Featured

Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.

Rated 5 out of 5 stars (662)
98,250 users

Enhancer for YouTube™ Featured

One of the best extensions for YouTube™. All the features you need to make YouTube™ more awesome!

Rated 5 out of 5 stars (72)
39,170 users

Prevent Tab Overflow Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (66)
10,170 users

Dark YouTube Theme Featured

Shut down the lights on YouTube.
Enjoy!

Rated 5 out of 5 stars (77)
56,500 users