Launch Browser in Code

For React project create folder .vscode an in it launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "chrome",
            "request": "launch",
            "name": "Launch Chrome on localhost:3000",
            "url": "http://localhost:3000",
            "webRoot": "${workspaceFolder}/src",
            "userDataDir": "${workspaceFolder}/.vscode/chrome"
        }
    ]
}

This will create separate browser for development.