How to use "Subtitles For YouTube" in Chrome browser

Visit "chrome web store"

Search "Subtitles For YouTube"

Or, Click the following link

[Subtitles For YouTube] (EN)

Add to Chrome browser

Here in this blog, 

you can download subtitles

Visit "Youtube" site

Click "UPLOAD" under the clip

Drag and Drop 

the downloaded subtitle file 

You can enjoy Youtube clip 

with subtitles.