2FF Youtube viewer

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "version": "0.2.0",
    "manifest_version": 2,
    "homepage_url": "https:\/\/sites.google.com\/site\/qurihara\/home\/2ff",
    "content_scripts": [
        {
            "js": [
                "notify.js",
                "subtitle.js",
                "content_youtube.js"
            ],
            "matches": [
                "*:\/\/www.youtube.com\/*",
                "*:\/\/www.amazon.co.jp\/dp\/*?autoplay=1*"
            ],
            "run_at": "document_end"
        }
    ],
    "description": "2FF (2-level fast forwarding) Youtube viewer can save time for watching Youtube videos.",
    "name": "2FF Youtube viewer",
    "permissions": [
        "http:\/\/www.youtube.com\/html5",
        "https:\/\/2ff.azurewebsites.net\/*",
        "notifications",
        "storage"
    ],
    "options_page": "opt.html",
    "web_accessible_resources": [
        "icons\/icon_048.png"
    ],
    "icons": {
        "16": "icons\/icon_016.png",
        "32": "icons\/icon_032.png",
        "48": "icons\/icon_048.png",
        "128": "icons\/icon_128.png"
    },
    "browser_action": {
        "default_icon": "icons\/icon_032.png",
        "default_popup": "opt.html"
    },
    "background": {
        "scripts": [
            "bg.js"
        ]
    },
    "default_locale": "en"
}