Featured Extensions

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QR Code Image Generator No Restart Featured

Create a QR Code of the selected text or current URL. Customize image with different colors and sizes.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!

Rated 5 out of 5 stars (15)
17,819 users

FireTube (Youtube Music Player) No Restart Featured

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

Interested in building something like this yourself? Learn to code for mobile and more at Mobile Makers !

Rated 4 out of 5 stars (103)
25,556 users

Undo Closed Tabs Button Featured

Tired of going to History -> Recently Closed Tabs just to undo a closed tab? Then this extension is for you!

This extension allows you to undo closed tabs via a toolbar button or the right-click context menu.

Rated 4 out of 5 stars (350)
58,577 users

NoScript Security Suite 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 (1,462)
2,297,103 users

FireGestures Featured

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Rated 4 out of 5 stars (857)
433,177 users

YouTube Control Center No Restart Featured

YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.

Rated 4 out of 5 stars (33)
10,355 users

S3.Google Translator Featured

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

Rated 5 out of 5 stars (182)
233,442 users

URL Fixer No Restart Featured

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Rated 4 out of 5 stars (98)
23,316 users

Multifox No Restart Featured

An extension that allows Firefox to connect to websites using different user names. Simultaneously.

*** Multifox 3 – Now with PER-TAB profiles *** https://getmultifox.com/


*** Multifox 2 users: try the "Window Mode" (see screenshot below) ***

Rated 4 out of 5 stars (70)
69,077 users

Password Tags Featured

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (5)
3,239 users

Omnibar Featured

Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.

Rated 4 out of 5 stars (455)
51,979 users

YouTube ALL HTML5 No Restart Featured

Play all videos on youtube without flash in your preferred size using only HTML5.

Rated 5 out of 5 stars (115)
111,704 users

Image Block Featured

Image Block adds a toggle button that conditionally blocks/allows loading of images on webpages. Blocking images results in faster browsing, especially helpful on handheld devices or slower connections like GSM/GPRS/EDGE dial-up etc.

Rated 4 out of 5 stars (121)
55,268 users

Prevent Tab Overflow No Restart Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (46)
13,355 users

Google search link fix No Restart Featured

This extension prevents Google, Yahoo and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.

Rated 5 out of 5 stars (107)
69,967 users

NoSquint Featured

NoSquint allows you to adjust the text-only and full-page (both text and images) zoom levels as well as color settings both globally (for all sites) and per site.

Rated 5 out of 5 stars (442)
353,770 users

Copy Plain Text 2 Featured

Copies text without formatting

Rated 5 out of 5 stars (54)
38,790 users

Download YouTube Videos as MP4 No Restart Featured

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

Rated 4 out of 5 stars (328)
1,036,034 users

Reader No Restart Featured

Reader is the ultimate Reader tool for Firefox.

Rated 5 out of 5 stars (50)
35,740 users

ProCon Latte Content Filter Featured

Block web pages containing pornography or any other type of material based on keyword lists.

Rated 4 out of 5 stars (237)
70,889 users