Dark Reader
Tema escuro para todos os sites. Mantenha seus olhos relaxados usando o tema escuro em sua navegação diária.
1.182.368 usuários
Ghostery – Bloqueador de anúncios para privacidade
O Ghostery é uma poderosa extensão de privacidade.Bloqueie anúncios, interrompa rastreadores e acelere sites.
1.052.026 usuários
FoxyProxy Standard
FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.
217.635 usuários
Stylus
Mude o estilo da web com o Stylus, um gerenciador de estilos do usuário. O Stylus permite instalar facilmente temas e skins para Google, Facebook, YouTube, Orkut e muitos, muitos outros sites.
112.326 usuários
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
714.421 usuários
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
155.202 usuários
User-Agent Switcher
Easily override the browser's User-Agent string
66.950 usuários
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.
65.647 usuários
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.
64.898 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!
51.112 usuários
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
42.447 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.
37.792 usuários
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
36.167 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).
35.180 usuários
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
29.855 usuários
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
17.148 usuários
cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
16.603 usuários
RESTED
A REST client for the rest of us
16.289 usuários
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
15.255 usuários
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
15.024 usuários
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)
14.355 usuários
Empty Cache Button
Cache clearing made easy. One click.
13.772 usuários
Fake Filler
A form filler that fills all form inputs (textboxes, textareas, radio buttons, dropdowns, etc.) with fake and randomly generated data. The purpose of this extension is to help developers and testers test forms quickly and easily.
12.188 usuários
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.
11.453 usuários
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
11.299 usuários