Dark Reader
Dunkles Design für jede Website. Schonen Sie Ihre Augen und verwenden Sie Dark Reader für die Nacht und das tägliche Surfen.
1.160.138 Benutzer
Ghostery – datenschutzorientierter Werbeblocker
Ghostery ist eine leistungsstarke Datenschutz-Erweiterung.Damit können Sie Werbung blockieren, Tracker stoppen und Websites beschleunigen.
1.023.055 Benutzer
FoxyProxy Standard
FoxyProxy ist ein hochentwickeltes Proxy-Management-Werkzeug, das die begrenzten Proxy-Fähigkeiten von Firefox vollständig ersetzt. Es bietet reichhaltigere Funktionalität als SwitchProxy, ProxyButton, QuickProxy, ProxyTex, TorButton etc.
209.716 Benutzer
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
702.535 Benutzer
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
146.665 Benutzer
User-Agent Switcher
Easily override the browser's User-Agent string
64.824 Benutzer
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 Benutzer
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 Benutzer
Ruffle
Bringt Flash zurück ins Web, wo es hingehört.
49.753 Benutzer
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
41.693 Benutzer
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 Benutzer
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34.208 Benutzer
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 Benutzer
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
29.306 Benutzer
cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
16.340 Benutzer
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16.079 Benutzer
RESTED
A REST client for the rest of us
15.203 Benutzer
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
14.520 Benutzer
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
14.479 Benutzer
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 Benutzer
Empty Cache Button
Cache clearing made easy. One click.
12.834 Benutzer
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 Benutzer
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 Benutzer
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10.874 Benutzer