Walmart to Facebook Marketplace

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Walmart to Facebook Marketplace",
    "version": "3.0",
    "description": "Automatically fetch product details from Walmart and fill Facebook Marketplace listings",
    "permissions": [
        "activeTab",
        "scripting",
        "storage",
        "tabs"
    ],
    "host_permissions": [
        "https:\/\/*.walmart.com\/*",
        "https:\/\/*.facebook.com\/*"
    ],
    "action": {
        "default_popup": "popup.html",
        "default_icon": {
            "16": "icons\/icon16.png",
            "48": "icons\/icon48.png",
            "128": "icons\/icon128.png"
        }
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/*.facebook.com\/marketplace\/*"
            ],
            "js": [
                "content.js"
            ],
            "run_at": "document_end"
        },
        {
            "matches": [
                "https:\/\/*.walmart.com\/*"
            ],
            "js": [
                "walmart-content.js"
            ],
            "run_at": "document_end"
        }
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "icons\/*"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self'"
    },
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    }
}