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document.getElementsByTagName("video")[0].playbackRate = x
// x --> (video speed eg: 2 )
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Windows: Ctrl + Shift + J
macOS: Command + Option + J
Copy and paste this into the console:
window.addEventListener("keydown", e => {
if (e.key === "]") {
document.getElementsByTagName("video")[0].playbackRate += 0.1;
}
if (e.key === "[") {
document.getElementsByTagName("video")[0].playbackRate -= 0.1;
}
});
close dev tools with
Windows: Ctrl + Shift + J
macOS: Command + Option + J
press ] to increase and [ to decrease youtube speed