Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1,128,052 úsáideoir
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,120,254 úsáideoir
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
318,933 úsáideoir
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.
230,936 úsáideoir
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
123,497 úsáideoir
Disconnect
Make the web faster, more private, and more secure.
107,638 úsáideoir
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.
94,617 úsáideoir
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.
89,970 úsáideoir
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
87,586 úsáideoir
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
82,286 úsáideoir
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
69,342 úsáideoir
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.
67,816 úsáideoir
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
29,265 úsáideoir
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
22,069 úsáideoir
Stylebot
Change the appearance of the web instantly
6,823 úsáideoir
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
692,514 úsáideoir
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.
188,084 úsáideoir
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
174,467 úsáideoir
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
157,763 úsáideoir
Wappalyzer
Identify technologies on websites
122,435 úsáideoir
Web Developer
The Web Developer extension adds various web developer tools to the browser.
101,239 úsáideoir
Vue.js devtools
DevTools extension for debugging Vue.js applications.
93,220 úsáideoir
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
89,964 úsáideoir
Violentmonkey
Userscript support for browsers, open source.
80,757 úsáideoir
User-Agent Switcher
Easily override the browser's User-Agent string
62,385 úsáideoir