manifest.json

{
    "name": "InstaStoryChecker",
    "description": "InstaStoryChecker",
    "version": "1.0",
    "manifest_version": 3,
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [{
        "matches": ["https://instagram.com/*", "https://*.instagram.com/*", "http://instagram.com/*", "http://*.instagram.com/*"],
        "css": ["styles.css"],
        "js": ["content-script.js"]
    }],
    "web_accessible_resources": [{
        "resources": ["script.js"],
        "matches": ["https://instagram.com/*", "https://*.instagram.com/*", "http://instagram.com/*", "http://*.instagram.com/*"]
    }],
    "permissions": ["storage", "activeTab", "scripting"],
    "action": {
        "default_icon": {
            "16": "/images/favicon_16.png",
            "32": "/images/favicon_32.png",
            "48": "/images/favicon_48.png",
            "128": "/images/favicon_128.png"
        }
    },
    "icons": {
        "16": "/images/favicon_16.png",
        "32": "/images/favicon_32.png",
        "48": "/images/favicon_48.png",
        "128": "/images/favicon_128.png"
    }
}