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.
35,195 users
JavaScript Switcher
A lightweight addon that adds a Toggle button in URL bar, for toggling JavaScript (on or off) individually per domain, and stores that for future visit. Works also with Firefox 57+.
6,549 users
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
14,263 users
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
51,205 users
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
270,489 users
uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
10,690,907 users
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
174,661 users
DuckDuckGo HTML Search (POST)
Adds DuckDuckGo HTML as a search engine for a non-JavaScript experience
276 users
WP Hive - A better WordPress Repository
Get useful metrics such as the impact on memory usage & pagespeed, PHP errors, warning, Javascript issues, PHP compatibility, latest WordPress version compatibility, database footprint, activation error, and more right from the WordPress repository
189 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
48,293 users
Mobile DevTools
an extension that adds Eruda developer tools to Firefox Android. Lets you use the console, inspect elements, and network monitor on your phone
2,264 users
Customizer styles and scripts
Customize font size and styles of site. Extension give you able to change pages of sites on your choice, add custom javascript and run it on reload page, change font size, font color and any other styles with css syntax.
25 users
Fucking JPEG
This addon makes sure you only get the image on Reddit/imgur/Tumblr media pages. "Just give me the fucking JPEG!"
562 users
Location Guard
Hide your geographic location from websites. Report a fake location with the addition of random noise in order to protect your privacy. Per site settings with three configurable levels of accuracy or even the possibility to use a fixed location.
19,138 users
Code Editor
Powered by the Monaco Editor, it provides support for basic syntax colorization, IntelliSense, validation and Diff Editor features.
704 users
Random User-Agent (Switcher)
Automatically change the user agent after a specified period of time to a randomly selected one, thus hiding your real user agent
4,807 users
