Om dizze add-ons te brûken, moatte jo Firefox downloade.

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Beoardielingen foar Simple YouTube to MP3/MP4 Converter and Downloader

Simple YouTube to MP3/MP4 Converter and Downloader troch UsualBeings

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Wurdearringen foar Firefox-brûker 13529950
troch Firefox-brûker 13529950, 9 jierren lyn
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)