Ultrawidify
Aspect ratio fixer for Youtube. Allows improperly encoded videos to properly fit ultrawide and superwide displays (e.g. 21:9) — and it attempts to do so automatically.
6,453 人のユーザー
Zoom for Firefox
Zoom in or out on web content using the zoom button and mouse scroll wheel for more comfortable reading. That to each percent value. It helps you to zoom easily in and out a web page. Thanks to the slider and the zoom buttons.
6,421 人のユーザー
Draw on Page
Easily draw on any website with simple drawing tools, then print the result.
6,414 人のユーザー
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.
6,212 人のユーザー
Unwanted Twitch
Hide unwanted streams, games, categories, channels and tags on: twitch.tv
6,092 人のユーザー
QR Code (Generator and Reader)
Generate QR Code from the url of current page, link or selected text. And decode QR Code in image.
6,068 人のユーザー
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.
5,868 人のユーザー
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.
5,858 人のユーザー
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.
5,814 人のユーザー
WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
5,791 人のユーザー
Disable AI
Don't just hide results. Disable AI overviews on Brave Search, DuckDuckGo, Ecosia, Google, and Qwant so your searches consume less energy and water.
5,713 人のユーザー
Enhancer
Enhancer is open-sourced and free extension, which adds what is missing on streaming platforms.
5,695 人のユーザー
Full Screen for Firefox
Go full screen with one click on the full screen button. That includes also the full screen movies such as YouTube, Vimeo, etc.
5,614 人のユーザー
Fixed Zoom
Extension that sets a custom default zoom for all pages in Firefox. You can set a general zoom for all pages or custom rules depending on the site.
5,369 人のユーザー
Pokémon Showdown Randbats Tooltip
Enhanced Tooltip functionality for Pokémon Showdown Random Battle formats.
5,295 人のユーザー
Tridactyl
Vim, but in your browser. Replace Firefox's control mechanism with one modelled on Vim. This addon is very usable, but is in an early stage of development. We intend to implement the majority of Vimperator's features.
5,217 人のユーザー
