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YouTubeビデオ（HTML5）の再生速度を自在に変更できるFirefoxアドオン「Html5 Youtube Video Speed Controller」: Mozilla Re-Mix
Video Speed Controller』は動画サービスの再生速度を自由に変更できるChrome/Firefox用拡張機能 - uzurea.net
javascript - How to change the playing speed of videos in HTML5? - Stack Overflow
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Youtube Speed Control – Get this Extension for Firefox (en-US)
Video Speed Control – Get this Extension for 🦊 Firefox (en-US)
Video Speed Controller』は動画サービスの再生速度を自由に変更できるChrome/Firefox用拡張機能 - uzurea.net
Top 2 Video Speed Controller Extensions for Chrome Firefox and Safari
YouTube 動画の再生速度を、細かく調整できるようにするFirefox アドオン「Html5 Youtube Video Speed Controller」 – GIGA！無料通信
GitHub - gediminasel/videospeed-firefox: HTML5 video speed controller (for Firefox). WebExtensions port of Video Speed Controller Chrome extension.
Contrôleur de vitesse vidéo pour Mozilla Firefox et Google Chrome - Comment 2023
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Change YouTube Speed On Firefox with these 3 Free Add-Ons
YouTube Speed Controller – Get this Extension for 🦊 Firefox (en-US)
Top 7 Video Speed Controller Extensions for Chrome/Firefox/Safari
Change YouTube Speed On Firefox with these 3 Free Add-Ons
Video Speed Control – Get this Extension for 🦊 Firefox (en-US)
Top 2 Video Speed Controller Extensions for Chrome Firefox and Safari
Top 12 Best Video Speed Controller Free Download of 2023 - EaseUS
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