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Reviews for Simple YouTube to MP3/MP4 Converter and Downloader

Simple YouTube to MP3/MP4 Converter and Downloader by UsualBeings

3.6 Stars out of 5
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Review by Firefox user 13529950
by Firefox user 13529950, 7 years ago
There are some problems of using this after the recent update of Firefox version. It seems that this extension is slowing down YouTube (with a yellow bar error message)