@avi12 That's one way of doing it. In the extension I used, I suppose they just stored current speed in some variaible, and whenever+ shortcut was hit, it would increment by 0.25, and - shortcut would decrease by 0.25. Not percentages of actual speed, just a set interval.

I set mine to increase by +0.15 and decrease by 0.10, so I'd get some odd speed like 1.35.

But that would be easy to fix: include a shortcut to put back speed to 1x. So if somehow the user messes things to the point of getting lost, it could switch back to normal with ease.

@avi12 For me at least, inc / dec by a fixed interval (like 0.25) is good enough. Within the extension I used at Chrome, that was the standard interval, but it was customizable, so the user could assign any interval desired.

@avi12 Yeah, I was refering to a keyboard shortcut. Sometimes one needs to slow down a bit for a while... And then increase it again.

Does it have shortcuts for increasing / decreasing speed?