cool and good, works and does what it says it does.

the best add on of youtube now

Wonderful addon, i can't use youtube on firefox without this. I love it.

Awesome extension, downloaded it for resizing videos to the exact width of the browser window, but finding myself using more and more features, e.g. controlling playback speed with ctrl+mouse wheel. Really great stuff, kudos to the developer

Práctico y facil de usar :)

Would not watch Youtube without it!

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5*