Auto refresh actual webpage

{
    "update_url": "http:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Auto refresh actual webpage",
    "description": "Automatically reload webpage in actual tab. You can set refresh interval.",
    "version": "1.0",
    "manifest_version": 2,
    "background": {
        "scripts": [
            "jquery.js",
            "background.js"
        ]
    },
    "options_page": "options.html",
    "content_security_policy": "script-src 'self'; object-src 'self'",
    "permissions": [
        "tabs",
        "http:\/\/*\/*",
        "https:\/\/*\/*",
        "contextMenus"
    ],
    "icons": {
        "16": "img\/ico_16.png",
        "48": "img\/ico_48.png",
        "128": "img\/ico_128.png"
    }
}