Dark Reader
Dunkles Design für jede Website. Schonen Sie Ihre Augen und verwenden Sie Dark Reader für die Nacht und das tägliche Surfen.
1.293.573 Benutzer
Ghostery – datenschutzorientierter Werbeblocker
Der beste Werbeblocker und Datenschutz- Erweiterung für Firefox. Stoppt Tracker, beschleunigt Webseiten und blockiert Werbung überall, einschließlich YouTube und Facebook.
1.021.671 Benutzer
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
58.688 Benutzer
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
32.879 Benutzer
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
759.694 Benutzer
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
143.801 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.
90.531 Benutzer
Ruffle
Bringt Flash zurück ins Web, wo es hingehört.
73.175 Benutzer
User-Agent Switcher
Easily override the browser's User-Agent string
63.698 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.
50.572 Benutzer
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
35.908 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.
34.006 Benutzer
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
24.400 Benutzer
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16.079 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)
14.120 Benutzer
RESTED
A REST client for the rest of us
13.955 Benutzer
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13.464 Benutzer
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11.474 Benutzer
Empty Cache Button
Cache clearing made easy. One click.
11.094 Benutzer
Bildschirmfoto speichern
Speichert die aktuell angzeigte Seite als Bilddatei oder kopiert diese in die Zwischenablage.
10.003 Benutzer
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
9.893 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.
7.985 Benutzer
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7.473 Benutzer
Form History Control
Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller. Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.
7.279 Benutzer