SoundFixer
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
43,064 人のユーザー
Worldwide Radio
Listen to live radio stations from around the world!
30,381 人のユーザー
Global Speed: ビデオ速度制御
ビデオとオーディオのデフォルト速度を設定します。
50,432 人のユーザー
YouTube Downloader (UDL Helper)
この拡張機能を使用することにより、ユーチューブ/インスタグラム/オドノクラスニキからビデオをダウンロードしたり、ビデオから音声を出したりできます。MP3、MP4、WEBMフォーマットがサポートされています。オンラインプレーヤーで再生されるビデオのスクリーンショットが撮れます。
32,297 人のユーザー
Youtube Audio
Stream just the audio from YouTube to save bandwidth and battery life
18,328 人のユーザー
Librezam
Shazam APIを使用したオープンソースの音楽認識拡張機能 (代替バックエンドとしてAudd、ACRCloudのAPIにも対応しています)
15,239 人のユーザー
Youtube Downloader
YouTube のダウンロードを簡単に:1クリックでストレスなし。
11,683 人のユーザー
Media Downloader Unleashed!!
Detect and download 🎬 videos, 🎥 streams, 🎵 audio and other files from your browser! Compatible with .m3u8, .mpd, .mp4, .mp3, .ogg and many more formats and websites! (❌ Does not work with YouTube). Completely free, open-source!
4,944 人のユーザー
YouTube Downloader
YouTube Downloader – Free YouTube Video Downloader & MP3 Converter | 4K Support Easily download YouTube videos in MP3, MP4, HD, or 4K with this fast and free Firefox extension. Convert YouTube to MP3 or download videos in any format with one click.
4,057 人のユーザー
Free YouTube Video Downloader
Easily download your favorite YouTube videos in high quality with just a click. Build your video library, enjoy offline viewing, and share with friends—anytime, anywhere!
3,351 人のユーザー
AI Toolbox
Ultimate AI assistant! Access all AIs anywhere and boost your productivity: ChatGPT, Gemini, DeepSeek, Grok, Copilot, Claude, Llama, Qwen, Mistral AI, Perplexity, Poe, Narrow AIs and much MORE! 💖 No user information is collected by the developer
2,375 人のユーザー
Music Mode for YouTube™
Hides the video and thumbnails on YouTube. Blocks the video keeping only the audio on YouTube Music. Additionally, it removes the ads from YouTube and allows YouTube to play in the background on mobile. Easy to use with many options.
2,162 人のユーザー
YouTube Video Downloader Pro
Download your favorite YouTube videos quickly and easily with YouTube Video Downloader Pro. Enjoy fast, high-quality downloads in multiple formats, including HD and 4K. Our ad-free, user-friendly extension ensures a seamless and secure experience.
2,050 人のユーザー
YouTube Downloader
YouTube Downloader Plus - Download videos from YouTube, TikTok, Instagram, Facebook, Twitch, Twitter, Vimeo, IMDB, Soundcloud and more—fast, free, easy, and high-quality!
2,031 人のユーザー
YouTube Video Easy Downloader
YouTube Video Easy Downloader lets you download YouTube videos up to 8K or convert them to audio—completely free and without a subscription. Download unlimited videos and audio in one click!
1,838 人のユーザー
Easy YouTube Video Downloader
Download YouTube videos up to 8K resolution for free with Easy YouTube Video Downloader—no subscription required. Enjoy fast and seamless video downloads in various formats.
1,708 人のユーザー
GX Mods
Add ambient music, typing sounds, and more to your browsing experience.
1,545 人のユーザー
Ultra Volume Booster
Boost audio volume up to 1000% with a sleek dark glassmorphism UI
1,055 人のユーザー
Telegram Downloader - Download Any Video & File
The official extension for TelegramDownloader.net. Instantly save any video (MP4, MKV), photo, music (MP3), or document directly from Telegram with just one click. (No app needed)
841 人のユーザー
SpoPlus - Edit Spotify Theme & Settings
2025 • Spotify extension that allows you to bring back classic heart button, set up new themes, fonts, remove annoying notifications, popups, and many more!
678 人のユーザー
Ultimate YouTube Downloader
Ultimate YouTube Downloader lets you download YouTube videos up to 8K or convert them to audio—completely free and with no subscription. Download unlimited videos and audio in one click!
532 人のユーザー
YouTube Download Master
YouTube Video Download Master lets you download YouTube videos in resolutions up to 8K or convert them to audio—completely free and without any subscription. Enjoy unlimited video and audio downloads with just one click!
460 人のユーザー
TikTok Video Downloader
TikTok Video Downloader: Download TikTok videos for free, with no watermark, in just one click! Enjoy seamless and high-quality downloads of your favorite TikTok content directly to your device.
458 人のユーザー
Vidoo
Change the speed of medias, adjust video filters, skip Ads automatically, flip videos horizontally or vertically, rotate, etc. Adjustable filter parameters: brightness, contrast, saturation, etc.
376 人のユーザー
KANTANコード
コード譜サイトのコード記号をディグリー(度数)表記に置き換える拡張機能です。
265 人のユーザー