Dark Reader
Темний вигляд для кожного мережевого сайту. Піклуйтеся про свої очі, використовуйте темний вид для нічного та щоденного перегляду.
1 286 654 користувача
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.
1 014 325 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.
134 242 користувача
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
58 192 користувача
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
35 135 користувачів
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
755 596 користувачів
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
142 221 користувач
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.
90 198 користувачів
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!
72 672 користувача
User-Agent Switcher
Easily override the browser's User-Agent string
63 246 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.
50 099 користувачів
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
35 424 користувача
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.
33 690 користувачів
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
24 257 користувачів
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15 878 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)
14 004 користувача
RESTED
A REST client for the rest of us
13 828 користувачів
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 376 користувачів
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11 336 користувачів
Empty Cache Button
Cache clearing made easy. One click.
10 963 користувача
Save Screenshot
Saves the current page as image file or copies it to clipboard.
9 955 користувачів
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
9 814 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.
7 885 користувачів
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7 393 користувача
Form History Control
Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller. Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.
7 212 користувачів