Full page screenshot in One Click

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Full page screenshot in One Click",
    "version": "1.0",
    "default_locale": "en",
    "description": "A screenshot of the full page in one click. Just click one button and the screenshot will be saved on your computer.",
    "permissions": [
        "scripting",
        "activeTab"
    ],
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "html2canvas.min.js"
            ],
            "run_at": "document_end"
        }
    ],
    "background": [],
    "action": {
        "default_popup": "popup.html",
        "default_icon": {
            "16": "icons\/16.png",
            "48": "icons\/48.png",
            "128": "icons\/128.png"
        }
    },
    "icons": {
        "16": "icons\/16.png",
        "48": "icons\/48.png",
        "128": "icons\/128.png"
    }
}