如何下載 YouTube 的短片(Firefox) [How to download YouTube video using Firefox] - YouTube

The EASIEST way to download YouTube videos on Firefox!!!!! No need to copy and paste the link for the video, just click to download!!! 最簡單的方法下載YouTube影片(Firefox)！！不需要複製和貼上視頻的連­結，只需點擊下載！ Firefox official page (US): http://www.mozilla.org/en-US/ Firefox 官方

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