Giới Thiệu · Flash Player for YouTube
This very lightweight extension allows you to watch YouTube videos using Flash Player instead of the default HTML5 player. The Flash Player will consume less material resources (CPU, RAM) if your PC or laptop doesn't easily support HTML5 videos.Why you should try it? Because for a lot of people the HTML5 player is laggy and causes playback issues. Once installed you have nothing to do and you can easily switch between both players to compare them and choose the one that works best on your device.