Rotate Youtube Video (+ Zoom / Mirror, AB Loop)
You can rotate, zoom, mirror, or A-B loop the video. See the full details at the bottom of this page, or press the shortcut Ctrl + Shift + 1 after installing the add-on to open the add-on preferences.
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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.
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Pokémon Showdown Randbats Tooltip
Enhanced Tooltip functionality for Pokémon Showdown Random Battle formats.
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Dark Theme for Google™
A highly customizable dark theme for Google products (search, images, translate, and contacts)
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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.
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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.
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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.
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AiBlock for Youtube
Filter AI-generated content on YouTube. Community-powered blocklist with customizable warning and hiding modes.
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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.
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RYS — Remove YouTube Suggestions
Stop the YouTube rabbit hole. Customize YouTube's user interface to be less engaging.
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Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
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Claude in Sidebar
ブラウザのサイドバーでClaude AIと直接チャットできます。記事の要約、コードの説明、ページの翻訳、そしてタブを切り替えることなく即座に回答を得られます。
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WhatRuns
Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.
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BetterBLOX - Better Roblox Extension
See when any Roblox user was last online, pick your server region, and reskin the whole site — free with BetterBLOX.
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Better Lyrics (Lyrics for Youtube Music)
Enhance YouTube Music with beautiful time-synced lyrics, multilingual support, real-time translations and more
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