Automatically focuses the YouTube video player so keyboard controls work instantly (seeking back/forward and volume control).

To install: https://chromewebstore.google.com/detail/youtube-auto-focus/...

Source code: https://github.com/ile/YouTubeAutoFocus

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YouTube Auto Subtitles

Selects auto-generated subtitles automatically.

To install: https://chromewebstore.google.com/detail/youtube-auto-subtit...

Source code: https://github.com/ile/youtube-auto-subtitles