Dark Reader
Темний вигляд для кожного мережевого сайту. Піклуйтеся про свої очі, використовуйте темний вид для нічного та щоденного перегляду.
1 264 599 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.
127 892 користувача
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
52 428 користувачів
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
127 038 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.
124 435 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!
77 160 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.
44 773 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.
30 495 користувачів
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
21 228 користувачів
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
14 583 користувача
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12 128 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)
11 797 користувачів
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
9 530 користувачів
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
8 879 користувачів
MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
7 551 користувач
IPvFoo
Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements.
7 101 користувач
