When you watch a video on YouTube, you can speed up the playback speed up to twice by clicking Settings icon and choosing the playback speed you want. If you want to further increase the playback speed, you can do that as follows:
- Right-click and select the “Inspect Element” menu.
- Click the Console tab and paste the following a line of code:
document.querySelector('video').playbackRate = 2.5; - Hit the Enter key
Now you can watch the video 2.5 times faster.
If you don’t see the “Inspect Element” menu, choose Safari > Preferences, click Advanced, and then select “Show Develop menu in menu bar.”
References
Is there a way to speed up YouTube videos in Safari besides the standard (0.75, 1.25, etc)?
Use the developer tools in the Develop menu in Safari on Mac
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