User Experience Kit

by Dhaval Katrodiya

168 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,038 reviews

21,908,289 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).

anonymoX by anonymoX GmbH

Rated 3 out of 5 stars 231 reviews

579,149 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

Video DownloadHelper by mig

Rated 4 out of 5 stars 6,082 reviews

4,665,406 users

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

Ghostery by Ghostery

Rated 4 out of 5 stars 1,267 reviews

1,573,166 users

Enjoy a faster, safer and cleaner browsing experience.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 970 reviews

1,290,170 users

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

YouTube Flash Player by Maxime RF

Rated 5 out of 5 stars 58 reviews

392,646 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!

Web of Trust, WOT: Website Reputation Ratings by WOT Services

Rated 4 out of 5 stars 1,635 reviews

1,041,176 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 Jason Barnabe

Rated 4 out of 5 stars 787 reviews

527,486 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 290 reviews

374,960 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!

Multifox by jhultmann

Rated 4 out of 5 stars 88 reviews

80,259 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) ***

iCloud Bookmarks by Apple Inc.

Rated 2 out of 5 stars 120 reviews

410,307 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.

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 217 reviews

276,253 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.

BetterPrivacy-signed by IKRG

Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...

Flagfox by Dave G

Rated 5 out of 5 stars 638 reviews

584,750 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...

Self-Destructing Cookies by Ove

Rated 4 out of 5 stars 453 reviews

193,074 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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