User Experience Kit

by Dhaval Katrodiya

152 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,663 reviews

13,387,362 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 8,254 reviews

3,484,090 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 801 reviews

249,827 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 1,159 reviews

855,596 users

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

Ghostery by Ghostery

Rated 4 out of 5 stars 1,517 reviews

930,030 users

Increase your browsing privacy, protection, and speed.

S3.Google Translator by Oleksandr

Rated 5 out of 5 stars 388 reviews

296,138 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 247 reviews

379,072 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.

Stylish by userstyles.org

Rated 4 out of 5 stars 879 reviews

314,556 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.

Flagfox by Dave G

Rated 5 out of 5 stars 671 reviews

327,419 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...

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

Rated 4 out of 5 stars 1,341 reviews

303,444 users

Instantly know which websites to trust! WOT protects you while you browse, warning you against dangerous sites that host malware, phishing, and more.

Evernote Web Clipper by Evernote

Rated 2 out of 5 stars 997 reviews

226,506 users

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

FireGestures by Gomita

Rated 4 out of 5 stars 882 reviews

259,105 users

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

Cookies Manager+ by V@no

Rated 5 out of 5 stars 73 reviews

82,038 users

Cookies manager to view, edit and create new cookies. It also shows extra information about cookies, allows edit multiple cookies at once and backup/restore them.

Session Manager by Michael Kraft

Rated 4 out of 5 stars 474 reviews

227,420 users

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.

Theme Font & Size Changer by Baris Derin, Access Firefox Project

Rated 5 out of 5 stars 183 reviews

89,024 users

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.
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