*****★★★★★
The speed is written on the icon, so I think it's the best add-on. But I think the shortcut key is the opposite. I think it is more intuitive to 'A=decelerate' and 'D=accelerate'.
← HTML5 Video speed controller
Reviews for HTML5 Video speed controller
5.00
Average rating
4
Total ratings
2
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Recent user reviews
Pa*****★★★★★
Best. It worked where others don't.