https://www.electronjs.org/docs/tutorial/devtools-extension ~~~js mainWindow = new BrowserWindow({width: 800, height: 600}) mainWindow.loadURL("http://test/test.json"); BrowserWindow.addExtension("/Users/sunan/Library/Application Support/Google/Chrome/Default/Extensions/chklaanhfefbnpoihckbnefhakgolnmc/0.0.32.3_0"); ~~~