Featured Extensions

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FireTube (Youtube Music Player) No Restart Featured

Listen to free, unlimited music with FireTube.
Simply search the artist or song of your choice and enjoy.

Take FireTube on-the-go with the Android app.

Rated 4 out of 5 stars (117)
16,407 users

Privacy Settings No Restart Featured

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (44)
16,819 users

Keyword Search No Restart Featured

Search in the address bar without changing your search engine.

Rated 5 out of 5 stars (86)
9,362 users

Tab notifier Featured

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!

Rated 4 out of 5 stars (44)
4,978 users

ChatZilla Featured

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (127)
123,292 users

QR Code Image Generator No Restart Featured

Create a QR Code of the selected text or current URL. Use CTRL-SHIFT-Q to quickly see the QR Code. Also possible to create a QR Code from free text within Firefox. Works completely offline! Now with UTF8 support.

Rated 4 out of 5 stars (31)
16,760 users

Download Plan No Restart Featured

An addon to download files at specific time interval

Rated 4 out of 5 stars (5)
5,006 users

Free Memory No Restart Featured

An add-on to perform free-memory operations without visiting about:memory.
For Firefox 40+, try Free Memory 2.0 https://addons.mozilla.org/en-US/firefox/addon/free-memory-20/

Rated 4 out of 5 stars (55)
21,456 users

Stylish Featured

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (818)
436,967 users

Prevent Tab Overflow No Restart Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (55)
11,013 users

QrCodeR No Restart Featured

Encode selection, links and images to QrCode with right-click.

Rated 5 out of 5 stars (69)
7,458 users

AdBlock for YouTube™ No Restart Featured

AdBlock for YouTube™ removes all annoying Ads from YouTube

Rated 4 out of 5 stars (31)
302,587 users

Video Resumer No Restart Featured

Automatically resumes YouTube videos from where you played them last. Without this extension, for example, when you click through YouTube videos, back and forth, they always start from the beginning.

Rated 4 out of 5 stars (56)
14,689 users

Theme Font & Size Changer No Restart Featured

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (173)
94,960 users

Fastest Search - Browse/Search Faster! No Restart Featured

Search/browse faster than ever! Ctrl-Shift-F for whole-word/regex/all tabs/diacritic search;Create custom engines;Select-n-search with Smart SearchBox;Preview results;Auto copy plain text, drag-n-drop save images/open links. http://y2u.be/gDlLrVZ54L0

Rated 5 out of 5 stars (164)
7,369 users

Proxy Switcher No Restart Featured

Access to the complete Firefox's proxy settings right from a toolbar panel

Rated 5 out of 5 stars (17)
39,803 users

Google™ Translator No Restart Featured

Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.

Rated 4 out of 5 stars (130)
81,658 users

Session Manager No Restart Featured

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 4 out of 5 stars (473)
271,038 users

BugMeNot No Restart Featured

Bypass compulsory web registration with the context menu via www.bugmenot.com.

Rated 4 out of 5 stars (219)
30,731 users

Decentraleyes No Restart Featured

Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

Rated 5 out of 5 stars (57)
40,405 users