launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch webpack watch",
            "type": "node",
            "skipFiles": ["<node_internals>/**"],
            "request": "launch",
            "runtimeExecutable": "npm",
            "runtimeArgs": [
                "run", "wp-watch"
            ]
        },
        {
            "name": "Launch WebExtension",
            "type": "node",
            "skipFiles": ["<node_internals>/**"],
            "request": "launch",
            "runtimeExecutable": "npm",
            "runtimeArgs": [
                "run", "desktop-run"
            ]
        },
    ],
    "compounds": [
        {
            "name": "Development",
            "configurations": ["Launch webpack watch", "Launch WebExtension"],
        }
    ]
}