Most Popular Extensions

Subscribe

Easy Youtube Video Downloader Express Compatible with Firefox 57+ Featured

WORKS WITH NEW YOUTUBE LAYOUT, "Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.

Rated 4 out of 5 stars (1,376)
233,959 users

User Agent Switcher Requires Restart

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Rated 4 out of 5 stars (277)
231,825 users

Speed Dial Requires Restart

Direct access to your most visited websites

Rated 4 out of 5 stars (1,246)
231,158 users

Yahoo Toolbar and New Tab

This Add-on gives you a simplified version of Yahoo Toolbar along with Flickr images on every new tab. It also provides quick access to your top sites.

Rated 2 out of 5 stars (322)
229,611 users

Enhancer for YouTube™ Compatible with Firefox 57+ Featured

Tons of features to improve your user experience on YouTube™.

Rated 5 out of 5 stars (170)
227,225 users

Reddit Enhancement Suite Compatible with Firefox 57+

NOTE: Reddit Enhancement Suite is developed independently, and is not officially endorsed by or affiliated with reddit.

RES is a suite of tools to enhance your reddit browsing experience.

Rated 5 out of 5 stars (123)
220,418 users

Hoxx VPN Proxy

Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.

Rated 5 out of 5 stars (3,366)
218,231 users

Визуальные закладки от Яндекс

Визуальные закладки – это страница, на которой собраны ваши любимые сайты.

Rated 3 out of 5 stars (111)
214,278 users

Disconnect Compatible with Firefox 57+ Featured

Make the web faster, more private, and more secure.

Rated 4 out of 5 stars (254)
213,898 users

Video Downloader professional Compatible with Firefox 57+

- download and save videos embedded into a website to your hard disk
- add youtube, vimeo and other videos easily to your video list
- supports up to 4k videos

Rated 4 out of 5 stars (884)
212,806 users

Quick Locale Switcher Requires Restart

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Rated 3 out of 5 stars (87)
207,695 users

Search and New Tab by Yahoo

This Add-on sets your default Search to Yahoo, and it brings a fresh look to every new tab page, powered by Yahoo.

Rated 3 out of 5 stars (35)
204,922 users

QuickJava Requires Restart

Allows quick enable and disable of Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for increasing security or decreasing bandwidth. (Read details for info on Java with FF52+!)

Rated 5 out of 5 stars (190)
203,975 users

FoxyProxy Standard Requires Restart

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Rated 4 out of 5 stars (459)
192,655 users

NetVideoHunter Requires Restart

This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

Rated 4 out of 5 stars (413)
191,104 users

Browsec VPN

Best VPN addon for Firefox.

Rated 3 out of 5 stars (264)
189,719 users

Xmarks Sync Requires Restart

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Rated 4 out of 5 stars (2,545)
187,452 users

ColorZilla Compatible with Firefox 57+

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

Rated 4 out of 5 stars (387)
187,410 users

YouTube Flash Video Player

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Rated 5 out of 5 stars (81)
183,148 users

Password Exporter

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Rated 4 out of 5 stars (394)
182,444 users