User Experience Kit

by Dhaval Katrodiya

162 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,928 reviews

19,946,300 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Video DownloadHelper by mig

Rated 4 out of 5 stars 7,355 reviews

4,641,548 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

anonymoX by anonymoX GmbH

Rated 3 out of 5 stars 320 reviews

502,866 users

Easy anonymous web browsing.
– Change your IP-Address and country
– Visit blocked or censored websites.
– Delete cookies, show your public ip, and more

We provide the proxy servers, no external proxies or other programs required

Ghostery by Ghostery

Rated 5 out of 5 stars 1,338 reviews

1,404,697 users

Increase your browsing privacy, protection, and speed.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,019 reviews

1,211,822 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

OmniSidebar by Quicksaver

Rated 5 out of 5 stars 110 reviews

55,616 users

Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!

YouTube Flash Player by Maxime RF

Rated 5 out of 5 stars 71 reviews

375,464 users

A very lightweight add-on that allows you to watch YouTube™ videos using Flash® Player instead of the default HTML5 player. The Flash® Player will consume less material resources (CPU, RAM) if your PC doesn't easily support HTML5 videos. Try it!

Stylish by userstyles.org

Rated 4 out of 5 stars 857 reviews

447,915 users

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.

Multifox by jhultmann

Rated 4 out of 5 stars 113 reviews

81,019 users

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

*** Multifox 2 users: try the "Window Mode" (Addons - Multifox - Options) ***

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 247 reviews

286,622 users

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.

S3.Google Translator by Oleksandr

Rated 5 out of 5 stars 394 reviews

383,091 users

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!

iCloud Bookmarks by Apple Inc.

Rated 2 out of 5 stars 164 reviews

323,282 users

Keep your Firefox bookmarks on Windows up to date with your Safari bookmarks on iPhone, iPad, and Mac with the iCloud Bookmarks extension for Firefox.

BetterPrivacy-signed by IKRG

Control a new, trickier kind of cookie, better known as an LSO or Flash cookie. The BetterPrivacy safeguard offers various ways to handle Flash-cookies created by webpages with the help of your Flash plug-in...

Flagfox by Dave G

Rated 5 out of 5 stars 673 reviews

486,147 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

Evernote Web Clipper by Evernote

Rated 2 out of 5 stars 987 reviews

358,647 users

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.
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