Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1 249 777 brukarar
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.
977 815 brukarar
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.
212 051 brukarar
Download All Images
Easily save images with a wide range of customization features, such as file size, dimensions, and image type.
102 302 brukarar
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.
86 576 brukarar
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
75 342 brukarar
Disconnect
Make the web faster, more private, and more secure.
68 886 brukarar
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
55 553 brukarar
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
34 534 brukarar
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
23 028 brukarar
Port Authority
Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts.
13 409 brukarar
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
748 728 brukarar
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.
181 415 brukarar
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
155 664 brukarar
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
135 255 brukarar
Wappalyzer
Identify technologies on websites
121 127 brukarar
Violentmonkey
Userscript support for browsers, open source.
117 491 brukarar
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.
85 359 brukarar
Windscribe - Free VPN and Ad Blocker
Windscribe helps you circumvent censorship, block ads, beacons and trackers on websites you use every day.
81 631 brukarar
Web Developer
The Web Developer extension adds various web developer tools to the browser.
71 805 brukarar
Vue.js devtools
DevTools extension for debugging Vue.js applications.
67 982 brukarar
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!
67 500 brukarar