2FF Youtube viewer is a youtube extension for chrome. also, it is youtube video downloader extension. it's a free extension , it has 21 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 3118 days ago.
2FF (2-level fast forwarding) Youtube viewer notifies you when it can save time for watching Youtube videos.
You could download the latest version crx file or older version files and install it.
English, 日本語.
You could find more help information from 2ff youtube viewer support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of 2ff youtube viewer.
You could click to report abuse of 2ff youtube viewer.