Dark Reader
Tema escuro para todos os sites. Cuide dos seus olhos, use o Dark Reader para navegação noturna e diária.
1 207 497 utilizadores
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
1 019 334 utilizadores
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.
223 032 utilizadores
Flagfox
Mostra uma bandeira do país dependendo da localização do servidor do sítio web actual e forenece várias ferramentas como verificação de segurança dos sítios, whois, tradução, sítios similares, validação, encolhimento do URL, e muito mais...
112 413 utilizadores
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.
106 979 utilizadores
User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.
94 894 utilizadores
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
91 125 utilizadores
Disconnect
Make the web faster, more private, and more secure.
84 969 utilizadores
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
82 509 utilizadores
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
62 019 utilizadores
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
26 436 utilizadores
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
19 695 utilizadores
Stylebot
Change the appearance of the web instantly
10 529 utilizadores
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
691 151 utilizadores
React Developer Tools
React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the "⚛️ Components" or "⚛️ Profiler" tab.
189 615 utilizadores
FireShot: Full Web Page Screenshots (♥♥♥♥♥)
FireShot makes full page screen captures - http://bit.ly/RlBQMV Screenshots are quickly captured and: ― Saved as Image / PDF with links and text ― Sent to clipboard ― Printed Capture all open tabs or provide a list of the URLs for grabbing
162 891 utilizadores
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
148 052 utilizadores
Wappalyzer
Identify technologies on websites
124 904 utilizadores
Violentmonkey
Userscript support for browsers, open source.
95 415 utilizadores
Web Developer
The Web Developer extension adds various web developer tools to the browser.
86 138 utilizadores
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
85 224 utilizadores
Vue.js devtools
DevTools extension for debugging Vue.js applications.
81 058 utilizadores
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.
68 820 utilizadores
User-Agent Switcher
Easily override the browser's User-Agent string
65 936 utilizadores
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.
59 409 utilizadores