Mac：

1. zip /usr/local/lib/node_modules/uirecorder/tool/uirecorder.crx
2. unzip and change
3. chrome://extensions/ gen .crx
4. change start.js
5. it works

Windows：

1. unzip C:\Users\supdev\AppData\Roaming\npm\node_modules\uirecorder\tool\uirecorder.crx
2. change C:\Users\supdev\AppData\Roaming\npm\node_modules\uirecorder\tool\uirecorder\uirecorder\start.html to any display
3. open chrome developer mode and goto chrome://extensions/ click "打包扩展程序" and upload "C:\Users\supdev\AppData\Roaming\npm\node_modules\uirecorder\tool\uirecorder\uirecorder"
4. generate new uirecorder.crx
5. drag uirecorder.crx to chrome://extensions/ and get id
6. open C:\Users\supdev\AppData\Roaming\npm\node_modules\uirecorder\lib\start.js
7. change yield browser.url('chrome-extension://' + (debug ? 'cpeoaoofllichfgeklkgdehjfhmbgeaa' : 'gdgcededodoknhpogghdgdmejoopabmo')+'/'+(mobile?'mobile':'start')+'.html?port='+serverPort); to (debug ? 'cpeoaoofllichfgeklkgdehjfhmbgeaa' : 'id')
8. it works