Reveal Deleted FB Messages

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Reveal Deleted FB Messages",
    "description": "Xem l\u1ea1i tin nh\u1eafn \u0111\u00e3 g\u1ee1 tr\u00ean fb",
    "version": "0.0.4",
    "manifest_version": 3,
    "action": {
        "default_title": "Reveal Deleted FB Message",
        "default_popup": "popup\/popup.html",
        "default_icon": {
            "16": "icons\/icon16.png",
            "24": "icons\/icon24.png",
            "32": "icons\/icon32.png",
            "48": "icons\/icon48.png"
        }
    },
    "externally_connectable": {
        "matches": [
            "*:\/\/*.facebook.com\/*"
        ]
    },
    "permissions": [],
    "host_permissions": [
        "*:\/\/*.facebook.com\/*"
    ],
    "content_scripts": [
        {
            "js": [
                ".\/content.js"
            ],
            "matches": [
                "*:\/\/*.facebook.com\/*"
            ],
            "run_at": "document_start"
        }
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "inject_websocket.js",
                "icons\/icon16.png",
                "icons\/icon32.png"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ]
}