Hide YouTube™ Fullscreen Controls
Hides the YouTube™ fullscreen controls when moving the mouse to any border.
6,195 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.
6,166 users
Color Picker For Firefox
HEX Color Picker, RGB Color Picker, Color Picker EyeDropper, Pick color from web page (Color Picker For Firefox)
6,121 users
Скачать музыку и видео с ВК - VKSaver
VKSaver простой и безопасный способ скачать музыку и видео с ВК. VKSaver поможет скачать музыку с ВК вместе с обложками и тэгами.
5,957 users
Dark Theme for Google™
A highly customizable dark theme for Google products (search, images, translate, and contacts)
5,889 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+.
5,849 users
Pokémon Showdown Randbats Tooltip
Enhanced Tooltip functionality for Pokémon Showdown Random Battle formats.
5,700 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.
5,634 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.
5,570 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.
5,498 users
Instagram Hide Reels, Explore Page - IGPlus
2025 • Open-source • Disable Instagram Reels, videos, comments, suggestions wall, vanity metrics, homepage recommendations, trending... and many more.
5,490 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.
5,376 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.
5,297 users
Improve Crunchyroll
Enhance Crunchyroll: theater mode, skip intros/outros, mark as watched/not watched, fast forward/backward buttons, dark mode, ...
5,202 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.
5,138 users
