Twitter account detector

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Twitter account detector",
    "description": "This extension offers a quick way to show all twitter accounts from the page its on.",
    "version": "3.0",
    "action": {
        "browser_style": true,
        "default_icon": {
            "16": "images\/icon-16x16.png",
            "48": "images\/icon-48x48.png",
            "128": "images\/icon-128x128.png"
        },
        "default_popup": "popup\/popup.html"
    },
    "permissions": [
        "activeTab"
    ],
    "host_permissions": [
        "*:\/\/*\/*"
    ],
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "contentscript.js"
            ]
        }
    ]
}