Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6,524 users
Dark Mode - Night Eye
With Dark Mode - Night Eye, you can easily switch websites between dark and light mode as desired to take care of your eyes and reduce eye strain. Make your online experience more comfortable and enjoyable with this simple and convenient tool.
6,451 users
Google Translate
Adds Google Translate function to the page.
6,400 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+.
6,323 users
Adjust Screen Brightness
Control your browser's global screen brightness
6,309 users
Yandex Evolution - Поиск Яндекс
Popular Russian search engine by Yandex (Яndex, Яндекс)
6,151 users
Save PDF
Save current page as PDF. Very simple. No permissions, no third-party server. Uses only built-in Firefox converter. Works on Windows and Linux, not on Mac.
6,067 users
Binnen-I be gone
This add-on likely is only useful for users who speak German or visit German language websites - it will remove so called "Binnen-Is" on webpages.
6,058 users
Dreamy Tab
Bring a Breath of Fresh Air to Your Tabs
5,998 users
QR Code (Generator and Reader)
Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.
5,945 users
Unwanted Twitch
Hide unwanted streams, games, categories, channels and tags on: twitch.tv
5,910 users
Rutracker Torrent Search
Easy and quick search for books, music, videos in torrents.
5,910 users
Enhancer
Enhancer is open-sourced and free extension, which adds what is missing on streaming platforms.
5,820 users
Theme Font & Size Changer
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
5,715 users
TornTools
Tools for Torn users.
5,706 users
DjVu.js Viewer
The extension is a local copy of the DjVu.js Viewer which is available on https://djvu.js.org/. It allows you to open links to .djvu files right in the browser and .djvu files from a local drive. Also, it processes tag with .djvu files.
5,691 users
Quick Dial
Quick Dial, a speed dial page inspired from fast dial. Full Open Source, No Web Service, No Cloud Account, your data is your own.
5,688 users
FoxScroller
Auto scroll web pages with fully adjustable speed.
5,671 users
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
5,607 users
Playback speed
Control the speed of video playback.
5,573 users
Full Screen for Firefox
Go full screen with one click on the full screen button. That includes also the full screen movies such as the YouTube, Vimeo, Dailymotion, Youku video player, etc.
5,457 users
ePUB Reader
View ePUB files right in your browser in a popup window.
5,456 users
AO3 Enhancements
Various tweaks and enhancements for ArchiveOfOurOwn.org
5,437 users
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
5,432 users
Pokémon Showdown Randbats Tooltip
Enhanced Tooltip functionality for Pokémon Showdown Random Battle formats.
5,416 users