Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
55 817 пользователей
Redux DevTools
DevTools for Redux with actions history, undo and replay.
53 842 пользователя
Ruffle
Возвращает Flash в веб на свое место.
49 931 пользователь
Nimbus Screen Capture: Screenshot, Edit, Annotate
★ Used by Several Million users on different platforms ★ 1) Screen capture web pages 2) Selected regions 3) Whole browser window 4) Slack upload Edit screenshots. Save images as local files or Google Drive. Tools for Annotation. Upload and share
47 444 пользователя
Selenium IDE
Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.
43 625 пользователей
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
41 717 пользователей
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.
36 636 пользователей
Stylish - Custom themes for any website
Преобрази интернет вместе со Stylish - менеджером пользовательских стилей.
35 714 пользователей
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34 342 пользователя
JavaScript-Java Bridge
A replacement for the Java Plugin so Java Applets without graphics continue to work on browsers that no longer support NPAPI plugins. Java's LiveConnect API is emulated — data & method calls can be exchanged, and Java can manipulate the webpage DOM.
33 973 пользователя
RESTClient, a debugger for RESTful web services.
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
33 049 пользователей
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
29 404 пользователя
CORS Everywhere
A firefox addon allowing the user to enable CORS everywhere by altering http responses. Report issues to the repository, with enough information to reproduce the problem: https://github.com/spenibus/cors-everywhere-firefox-addon/issues
25 248 пользователей
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
25 068 пользователей
JSONView
Просмотр документов в формате JSON прямо в браузере.
24 846 пользователей
Media Converter and Muxer - Audio Tools
Easy to use video and audio converter and muxer written in WebExtension built on top of the well-known FFmpeg converter
24 787 пользователей
SAML-tracer
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
22 768 пользователей
Colorpick Eyedropper
A simple eye-dropper & color-picker tool allowing you to select color values from webpages. You will need to enable the add-on bar Firefox menu->Options->Add-on Bar OR View->Toolbars->Add-on Bar Then refresh the page.
22 475 пользователей
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
22 363 пользователя
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
20 949 пользователей
WAVE Accessibility Extension
Evaluate web accessibility within the Firefox browser. When activated, the WAVE extension injects icons and indicators into your page to give feedback about accessibility and to facilitate manual evaluation.
20 390 пользователей
Xdebug Helper for Firefox
This extension is very useful for PHP developers that are using PHP tools with Xdebug support like PHPStorm, Eclipse with PDT, Netbeans and MacGDBp or any other Xdebug compatible profiling tool like KCacheGrind, WinCacheGrind or Webgrind.
20 149 пользователей
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
20 096 пользователей
SeoQuake
SEOquake представляет собой бесплатный плагин для браузеров, который позволяет просматривать ключевые SEO-показатели любой страницы, а также предлагает другие полезные инструменты, в том числе для проведения SEO-аудита.
17 795 пользователей
Text Link
Allows URI texts written in webpages to be loaded by double clicks.
16 806 пользователей