Dark Reader
Tmavý motiv pro každou stránku. Používejte Dark Reader pro celodenní prohlížení webu a šetřete tak své oči.
1 292 323 uživatelů
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
1 021 110 uživatelů
Stylus
Změňte vzhled webů pomocí správce uživatelských stylů. Stylus umožňuje snadnou instalaci vzhledů a modifikací pro spoustu webů.
135 391 uživatelů
Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
58 144 uživatelů
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
22 181 uživatelů
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
788 480 uživatelů
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
142 285 uživatelů
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.
90 424 uživatelů
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!
72 659 uživatelů
User-Agent Switcher
Easily override the browser's User-Agent string
64 106 uživatelů
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.
50 761 uživatelů
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
35 662 uživatelů
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.
33 970 uživatelů
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
24 893 uživatelů
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15 893 uživatelů
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)
14 329 uživatelů
RESTED
A REST client for the rest of us
13 881 uživatelů
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 349 uživatelů
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11 754 uživatelů
Empty Cache Button
Cache clearing made easy. One click.
10 926 uživatelů
Save Screenshot
Saves the current page as image file or copies it to clipboard.
9 887 uživatelů
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
9 878 uživatelů
ScriptCat
Everything can be scripted, allowing your browser to do more!
9 141 uživatelů
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.
8 022 uživatelů
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7 517 uživatelů