Dark Reader
Темний вигляд для кожного мережевого сайту. Піклуйтеся про свої очі, використовуйте темний вид для нічного та щоденного перегляду.
1 219 851 користувач
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
981 397 користувачів
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
127 759 користувачів
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
56 488 користувачів
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
721 990 користувачів
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
136 770 користувачів
Cookie-Editor
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
83 243 користувача
Ruffle - Flash Emulator
Putting Flash back on the web. Designed to be easy to use, this extension will seamlessly enable you to play flash content, with no extra configuration required!
66 480 користувачів
User-Agent Switcher
Easily override the browser's User-Agent string
62 266 користувачів
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
50 363 користувача
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34 306 користувачів
Disable JavaScript
Adds the ability to disable JavaScript for specific sites or specific tabs. You can customize the default JS state (on or off), the disable behavior (by domain or by tab) and much more.
32 668 користувачів
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
25 813 користувачів
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15 216 користувачів
My IP Hider VPN
My IP Hider VPN is number one tool for hiding your IP and unblocking any web site! If your Firefox version is less then 55 please install older My IP Hider VPN from "Version History" (https://goo.gl/7ZQQjZ)
14 543 користувача
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
14 252 користувача
RESTED
A REST client for the rest of us
13 151 користувач
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12 482 користувача
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11 617 користувачів
Empty Cache Button
Cache clearing made easy. One click.
10 627 користувачів
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 160 користувачів
Save Screenshot
Saves the current page as image file or copies it to clipboard.
9 495 користувачів
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
7 919 користувачів
ScriptCat
Everything can be scripted, allowing your browser to do more!
7 754 користувача
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
7 210 користувачів