OPSWAT File Security for Browser

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_appName__",
    "description": "__MSG_appDescription__",
    "version": "4.5.0",
    "manifest_version": 3,
    "short_name": "__MSG_appShortName__",
    "action": {
        "default_popup": "index.html",
        "default_title": "__MSG_browserActionTitle__",
        "default_icon": {
            "19": ".\/icon-19.png",
            "38": ".\/icon-38.png"
        }
    },
    "background": {
        "service_worker": "background.js"
    },
    "default_locale": "en",
    "icons": {
        "16": "assets\/icons\/icon-16.png",
        "48": "assets\/icons\/icon-128.png",
        "128": "assets\/icons\/icon-128.png"
    },
    "options_page": "index.html#\/settings",
    "permissions": [
        "contextMenus",
        "cookies",
        "downloads",
        "notifications",
        "scripting",
        "storage",
        "tabs",
        "webRequest"
    ],
    "storage": {
        "managed_schema": "managed_schema.json"
    },
    "host_permissions": [
        "http:\/\/*\/",
        "https:\/\/*\/",
        "<all_urls>"
    ],
    "content_security_policy": {
        "extension_pages": "object-src 'self'; script-src 'self'"
    }
}