Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1.160.138 brugere
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1.023.055 brugere
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.
209.716 brugere
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
702.535 brugere
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
146.665 brugere
User-Agent Switcher
Easily override the browser's User-Agent string
64.824 brugere
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.
63.631 brugere
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.
62.658 brugere
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!
49.753 brugere
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
41.693 brugere
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.
36.588 brugere
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34.208 brugere
RESTClient, a debugger for RESTful web services.
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
32.966 brugere
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
29.306 brugere
cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
16.340 brugere
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16.079 brugere
RESTED
A REST client for the rest of us
15.203 brugere
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
14.520 brugere
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
14.479 brugere
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)
14.115 brugere
Empty Cache Button
Cache clearing made easy. One click.
12.834 brugere
Fake Filler
A form filler that fills all form inputs (textboxes, textareas, radio buttons, dropdowns, etc.) with fake and randomly generated data. The purpose of this extension is to help developers and testers test forms quickly and easily.
11.388 brugere
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.
11.062 brugere
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10.874 brugere