User-Agent Switcher
Easily override the browser's User-Agent string
사용자 63,839명
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.
사용자 54,578명
Redux DevTools
DevTools for Redux with actions history, undo and replay.
사용자 51,180명
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
사용자 48,707명
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
사용자 40,664명
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.
사용자 38,890명
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
사용자 35,687명
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.
사용자 34,316명
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.
사용자 30,895명
Stylish - Custom themes for any website
웹 사이트의 모양과 사용자 인터페이스를 설정합니다.
사용자 27,977명
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
사용자 27,649명
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
사용자 26,933명
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
사용자 23,881명
cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
사용자 23,749명
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.
사용자 22,381명
SAML-tracer
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
사용자 22,224명
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.
사용자 22,117명
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
사용자 20,958명
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
사용자 20,917명
JSONView
브라우저에서 JSON 문서를 보세요.
사용자 20,677명
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
사용자 20,511명
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
사용자 19,210명
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.
사용자 18,313명
SeoQuake SEO extension
Accelerate your SEO efforts on the fly. SEOquake is a free plugin for browsers that provides you with key SEO metrics for a specific page, along with other useful tools such as SEO Audit and many others.
사용자 16,482명
Поиск Яндекс
Добавляет Яндекс к поисковым движкам.
사용자 15,819명