I use this all the time, saves me time...lots!
Controls work well and remain subtle and unobtrusive during video playback.
The "1.00" is easy to tune out, even on Netflix.
Super job!

Must have

Fantastic

I love it but it doesn't show Sometimes

Très pratique pour accélérer les MOOC

it's an amazing, useful and easy to use extension.

Simply the best!

At last a port of Video Speed Controller for Firefox, thank you! Being able to adjust the speed with shortcuts is essential to me. It's like being able to read a text at the speed I want. Thanks again.

Exactly what I wanted!

Love it!

Fantastically useful addon, saves buckets of time, makes it easier to search HTML videos. Lovely

Good extension to control speed, I personally use keys + and - to control it (like a similar chrome extension)
Good customization :)

Works simply perfect with Vimeo which is exactly what I needed it for. The customisable shortcuts are a nice plus too!

BEST TIME SAVING APP EVER.

Seriously, had some coursework with professors from Texas that talk like snails crawl: sllllooooww.
With this extension, their unbearable 4 hour videos got reduced to a more reasonable 1.5 hours at a quicker pace.
I started training my brain to hear info faster in videos and as a result, start most videos at 2.0x speed or more just to save the time.
Would pay for the pro version considering how useful this extension has been and amazed that it's free ninety-nine!