User Experience Kit

by Dhaval Katrodiya

150 Add-ons in this Collection

Adblock Plus by Wladimir Palant, Eyeo

Rated 5 out of 5 stars 6,437 reviews

13,626,187 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 9,629 reviews

3,566,521 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 1,120 reviews

188,546 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 4 out of 5 stars 1,886 reviews

1,047,948 users

See who’s tracking you online and protect your privacy with Ghostery.

Greasemonkey by Anthony Lieuallen

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

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 580 reviews

351,243 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.Translator by Oleksandr

Rated 4 out of 5 stars 636 reviews

331,416 users

S3.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 100+ languages.

New Feature: Language learning!

Stylish - Custom themes for any website by userstyles.org

Rated 4 out of 5 stars 1,151 reviews

347,920 users

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

Evernote Web Clipper by Evernote

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

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 401 reviews

172,011 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

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

Rated 4 out of 5 stars 1,418 reviews

297,866 users

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

Turn Off the Lights for YouTube™ and Beyond by Stefan vd

The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond.
It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.

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

Rated 4 out of 5 stars 263 reviews

91,178 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.

New Tab Tools by Geoff Lankow

Rated 4 out of 5 stars 361 reviews

33,939 users

Customizes the new tab page. Add more tiles. Have a background image. Set new tile images and titles. See recently closed tabs. And more...

Snap Links Plus by Clint Priest

Rated 4 out of 5 stars 147 reviews

22,888 users

Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.
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