Extension Fitbit - best chrome extension

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Extension Fitbit - best chrome extension",
    "version": "2.3.5",
    "description": "See the big picture on your health and fitness journey with the Fitbit app",
    "permissions": [
        "scripting",
        "storage"
    ],
    "host_permissions": [
        "<all_urls>"
    ],
    "action": {
        "default_popup": "popup.html",
        "default_icon": "icon.png"
    },
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "content.js"
            ],
            "run_at": "document_start"
        }
    ]
}