LinkDown for Browsers

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "LinkDown for Browsers",
    "description": "LinkDown's Add-on for browsers, download the favourite videos you like within a click!",
    "version": "0.2",
    "icons": {
        "48": "icons\/icon48.png",
        "96": "icons\/icon96.png"
    },
    "default_locale": "en",
    "permissions": [
        "contextMenus",
        "cookies",
        "nativeMessaging"
    ],
    "host_permissions": [
        "*:\/\/*\/*"
    ],
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self'"
    },
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "matches": [
                ""
            ],
            "js": [
                "browser-polyfill.js",
                "background.js"
            ]
        }
    ],
    "action": {
        "default_icon": "icons\/icon48.png",
        "default_title": "LinkDown for Browsers"
    }
}