Dark Reader
Tryb ciemny dla wszystkich stron internetowych. Zadbaj o swoje oczy, używaj ciemnego motywu przeglądając w dzień i w nocy.
1 272 203 użytkowników
Ghostery – Bloker reklam chroniący prywatność
Ghostery to potężne rozszerzenie do ochrony prywatności.Blokuje reklamy, wstrzymuje tropiciele i przyspiesza działanie stron internetowych.
1 001 171 użytkowników
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
56 370 użytkowników
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
37 225 użytkowników
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
750 720 użytkowników
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
137 847 użytkowników
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.
89 300 użytkowników
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!
71 835 użytkowników
User-Agent Switcher
Easily override the browser's User-Agent string
62 250 użytkowników
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.
49 045 użytkowników
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34 218 użytkowników
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.
32 945 użytkowników
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
23 911 użytkowników
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15 283 użytkowników
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)
13 831 użytkowników
RESTED
A REST client for the rest of us
13 365 użytkowników
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 094 użytkowników
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
10 977 użytkowników
Empty Cache Button
Cache clearing made easy. One click.
10 566 użytkowników
Save Screenshot
Saves the current page as image file or copies it to clipboard.
9805 użytkowników
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
9564 użytkowników
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.
7693 użytkowników
ScriptCat
Everything can be scripted, allowing your browser to do more!
7385 użytkowników
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7237 użytkowników