Mobile simulator - responsive testing tool

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "__MSG_extName__",
    "description": "__MSG_extDescription__",
    "default_locale": "en",
    "author": "Fran\u00e7ois Duprat",
    "permissions": [
        "webRequest",
        "scripting",
        "tabs",
        "activeTab",
        "declarativeNetRequest",
        "webNavigation",
        "storage",
        "cookies",
        "contextMenus",
        "tabCapture",
        "offscreen",
        "commands"
    ],
    "host_permissions": [
        "<all_urls>",
        "*:\/\/*\/*"
    ],
    "icons": {
        "32": "icons\/32.png",
        "48": "icons\/48.png",
        "128": "icons\/128.png"
    },
    "background": {
        "service_worker": "js\/background.js"
    },
    "action": {
        "default_title": "__MSG_context_menu_activate__",
        "default_icon": {
            "32": "icons\/32.png",
            "48": "icons\/48.png"
        }
    },
    "commands": {
        "take-screenshot-1": {
            "description": "__MSG_screenshot_menu_1__"
        },
        "take-screenshot-2": {
            "description": "__MSG_screenshot_menu_2__"
        },
        "take-screenshot-3": {
            "description": "__MSG_screenshot_menu_3__"
        },
        "start-stop-video-capture": {
            "description": "__MSG_menu_screencast__"
        }
    },
    "web_accessible_resources": [
        {
            "resources": [
                "spoofer.js",
                "assets\/**\/*",
                "css\/**\/*",
                "icons\/**\/*"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "content_security_policy": {
        "extension_pages": "script-src 'self'; connect-src ws:\/\/localhost:9090\/ blob: data: https:\/\/mobile-first-admin.herokuapp.com https:\/\/jth7w9hc3m.execute-api.eu-west-3.amazonaws.com https:\/\/v2izih0lsk.execute-api.eu-west-3.amazonaws.com https:\/\/eu-central.storage.cloudconvert.com https:\/\/webmobilefirst-screencasts.s3.eu-west-3.amazonaws.com https:\/\/versionhistory.googleapis.com https:\/\/www.google-analytics.com https:\/\/pro.ip-api.com https:\/\/mobile-first-extension-temp-webm-video-captures.s3.eu-west-3.amazonaws.com"
    },
    "version": "4.2.2",
    "externally_connectable": {
        "matches": [
            "https:\/\/www.webmobilefirst.com\/*"
        ]
    }
}