Custom Video Speed for YouTube™ is a Chrome add-on developed by Thomas Povinelli. As the name suggests, this add-on allows users to change the speed of YouTube™ videos in a more precise way than the default options in the player. With this add-on, users can adjust the video speed by steps of 0.1, ranging from 0.1x up to 8.0x.

One of the main features of Custom Video Speed for YouTube™ is the ability to customize keyboard shortcuts for controlling the extension. By default, the extension assigns the '+' and '-' keys to adjust the speed by 0.1, and the '*' and '/' keys to change the speed in increments of 1.0. Holding the shift key while using these shortcuts enables finer adjustments in steps of 0.05 or 0.5, respectively. Additionally, the '`' key can be used to reset the speed to 1.0x normal speed.

This add-on also allows users to save their preferred speed as the default, which will be applied to all YouTube™ videos when opened. Furthermore, users can program up to 7 preset speeds, enabling them to quickly set the speed of a YouTube video to their stored preferences.

Custom Video Speed for YouTube™ is a helpful tool for those who want more control over the playback speed of YouTube™ videos. It enhances the YouTube™ experience by providing a wider range of speed options and customizable keyboard shortcuts. Please note that while this add-on works well on most YouTube pages and videos, compatibility may vary depending on the content.