ニコニコ音量保存くん is a fun chrome extension. it's a free extension , it has 5 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 3092 days ago.
動画の音量設定を投稿者毎に保存しておきます
You could download the latest version crx file or older version files and install it.
日本語.
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