YouTube Default Playback Speed Chrome 插件, crx 扩展下载

                    
Set the default playback speed for YouTube videos! Complete with hotkeys to manipulate the current video speed.
The main popup for the extension allows you to set the default playback speed for YouTube videos along with buttons to set the speed of the video in the current tab to half, normal, and double speed. The main settings popup shown in the screen shots is only active on YouTube video pages. The extension also provides hotkeys for quickly changing the speed of the video in the current tab:

Alt+Shift+1 sets the current tab to normal speed
Alt+Shift+2 sets the current tab to set default speed
Alt+Shift+Up increases the current tab by a the specified increment speed
Alt+Shift+Down decreases the current tab by the specified increment speed

Please let me know what other features you'd like.