Dark Reader
Donkere modus voor elke website. Zorg goed voor je ogen, gebruik donkere modus voor gebruik in de nacht of zelfs overdag.
1.217.030 gebruikers
Ghostery
Bescherm uw privacy.Met Ghostery ziet u wie u in de gaten houdt als u op het web surft.
981.855 gebruikers
Stylus
Herontwerp uw favoriete websites met Stylus, een actief ontwikkelde en door de gemeenschap gedreven gebruikersstijlbeheerder.
127.219 gebruikers
Clear Cache
Clear browser cache with a single click or via the F9 key. F9 Fever! ;)
56.915 gebruikers
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
720.959 gebruikers
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
137.185 gebruikers
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.
82.512 gebruikers
Ruffle
Zet Flash terug op het web waar het thuishoort.
66.349 gebruikers
User-Agent Switcher
Easily override the browser's User-Agent string
62.281 gebruikers
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.
50.630 gebruikers
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34.474 gebruikers
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.
32.750 gebruikers
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
25.583 gebruikers
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15.306 gebruikers
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)
14.526 gebruikers
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
14.090 gebruikers
RESTED
A REST client for the rest of us
13.174 gebruikers
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12.472 gebruikers
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11.692 gebruikers
MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
11.013 gebruikers
Empty Cache Button
Cache clearing made easy. One click.
10.690 gebruikers
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10.161 gebruikers
Save Screenshot
Saves the current page as image file or copies it to clipboard.
9.470 gebruikers
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.
7.949 gebruikers
ScriptCat
Everything can be scripted, allowing your browser to do more!
7.941 gebruikers