Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
1.263.752 wužiwarjow
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
128.044 wužiwarjow
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
52.408 wužiwarjow
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
126.850 wužiwarjow
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.
124.483 wužiwarjow
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!
77.159 wužiwarjow
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.
44.724 wužiwarjow
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.
30.457 wužiwarjow
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
21.229 wužiwarjow
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
14.554 wužiwarjow
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12.104 wužiwarjo
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)
11.798 wužiwarjow
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
8.892 wužiwarjow
MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
7.568 wužiwarjow
IPvFoo
Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements.
7.097 wužiwarjow
