Webmail Ad Blocker
Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
28 281 users
Copy PlainText
Copy Plain Text without any formatting
27 738 users
Custom Scrollbars
Give Firefox a personal touch with customized scrollbars!
25 777 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
25 666 users
Foxy Gestures
Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
20 776 users
Zoom Page WE
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
18 202 users
Snap Links Plus
Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well.
18 055 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
17 664 users
Forecastfox (fix version)
Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.
17 472 users
ScrollAnywhere
Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. Features also: - "grab and drag" scrolling - customizable scrollbars! - the Momentum auto-scroll
14 409 users
Minimal Theme for 𝕏 / Twitter
Declutter and refine the 𝕏 / Twitter web experience.
13 402 users
Stylebot
Change the appearance of the web instantly
10 852 users
Tampermonkey
Tampermonkey is the world's most popular userscript manager.
647 574 users
I don't care about cookies
Get rid of cookie warnings from almost all websites!
294 981 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
268 722 users
Firefox Color
Build, save and share beautiful Firefox themes.
111 548 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
92 369 users
Vue.js devtools
DevTools extension for debugging Vue.js applications.
83 054 users
Plasma Integration
Multitask efficiently by controlling browser functions from the Plasma desktop.
67 377 users
I still don't care about cookies
Community version of the popular extension "I don't care about cookies" https://github.com/OhMyGuus/I-Dont-Care-About-Cookies
65 135 users
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.
60 650 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
58 473 users
Old Reddit Redirect
Ensure Reddit always loads the old design
55 176 users
YouTube Downloader
Looking for youtube video downloader? Install the YouTube Downloader and download video from YouTube.
54 202 users
Dark Mode (WebExtension)
A global dark theme for the web
53 985 users