Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
58.292 usuários
Redux DevTools
DevTools for Redux with actions history, undo and replay.
57.507 usuários
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
50.704 usuários
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!
50.104 usuários
Selenium IDE
Selenium IDE é um ambiente de desenvolvimento integrado para os testes com Selenium. Foi desenvolvido como uma extensão do Firefox e permite gravar, editar e depurar os testes.
47.576 usuários
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
42.390 usuários
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.
38.187 usuários
Stylish - Custom themes for any website
Reestilize a web com Stylish, um gerenciador de estilos do usuário.
37.574 usuários
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.
37.040 usuários
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
36.392 usuários
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).
36.122 usuários
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
30.693 usuários
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
27.267 usuários
JSONView
Veja documentos JSON no navegador.
26.773 usuários
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
26.710 usuários
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
25.883 usuários
SAML-tracer
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
25.207 usuários
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.
23.630 usuários
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
23.033 usuários
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.
22.535 usuários
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.
22.282 usuários
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
22.143 usuários
ModHeader
Add and modify the HTTP request headers and response headers. Use ModHeader to: - Add / modify request and response headers - Add / modify cookies - Multi-profile support - Filtering based on URL, tab, or window - Export and share profiles
21.352 usuários
Autofill
A form filler, form recovery, text snippets, and automation tool all in one.
20.079 usuários
SeoQuake SEO extension
Acelere suas iniciativas de SEO rapidamente. O SEOquake é um plugin gratuito para navegadores que lhe fornece as principais métricas de SEO para uma página específica, juntamente com outras ferramentas úteis, como a Auditoria de SEO e muitas outras.
19.016 usuários