User Experience Kit

by Dhaval Katrodiya

166 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,885 reviews

20,304,971 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 7,124 reviews

4,526,766 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 310 reviews

520,861 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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,012 reviews

1,237,843 users

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

Ghostery by Ghostery

Rated 5 out of 5 stars 1,311 reviews

1,402,184 users

Increase your browsing privacy, protection, and speed.

YouTube Flash Player by Maxime RF

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!

Web of Trust, MyWOT/WOT: Website Reputation Rating by WOT Services

Rated 4 out of 5 stars 1,305 reviews

891,920 users

Find out which websites you can trust. WOT adds intuitive traffic light-style icons next to search results and URLs so you can decide whether to visit a site:
• Green – The site is trusted
• Yellow – Be cautious
• Red – Online threats detected

Stylish by

Rated 4 out of 5 stars 835 reviews

456,416 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.

S3.Google Translator by Oleksandr

Rated 5 out of 5 stars 381 reviews

378,936 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!

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 242 reviews

289,071 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.

Multifox by jhultmann

Rated 4 out of 5 stars 106 reviews

82,459 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) ***

ProxTube - Unblock YouTube by ProxTube

Rated 4 out of 5 stars 215 reviews

305,762 users

In some countries YouTube videos are blocked! Unblock them with this Addon.
Supported countries: Germany, Netherlands, Spain, ...? not US compatible
Status+Support: & Twitter: (EN/DE)

Flagfox by Dave G

Rated 5 out of 5 stars 666 reviews

492,074 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...

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...

Self-Destructing Cookies by Ove

Rated 4 out of 5 stars 532 reviews

188,811 users

Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.
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