Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1.037.958 brûkers
Ghostery – Privacy Ad Blocker
Ghostery is een krachtige privacy extensie. Blokkeer ads, stop trackers en maak websites sneller.
863.796 brûkers
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.
190.368 brûkers
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.
119.839 brûkers
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
106.025 brûkers
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...
102.081 brûkers
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.
87.890 brûkers
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
76.706 brûkers
Disconnect
Make the web faster, more private, and more secure.
70.227 brûkers
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
57.907 brûkers
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
39.733 brûkers
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
24.148 brûkers
Port Authority
Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts.
11.179 brûkers
Stylebot
Change the appearance of the web instantly
9.847 brûkers
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
689.239 brûkers
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.
183.520 brûkers
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
158.316 brûkers
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
139.909 brûkers
Wappalyzer
Identify technologies on websites
121.353 brûkers
Violentmonkey
Userscript support for browsers, open source.
109.783 brûkers
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
80.036 brûkers
Web Developer
The Web Developer extension adds various web developer tools to the browser.
76.454 brûkers
Vue.js devtools
DevTools extension for debugging Vue.js applications.
73.246 brûkers
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.
73.024 brûkers
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!
64.129 brûkers