Uncheck the button

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Uncheck the button",
    "version": "0.4",
    "description": "Allows to uncheck any radio button of a form.",
    "icons": {
        "16": "images\/icon16.png",
        "48": "images\/icon48.png",
        "128": "images\/icon128.png"
    },
    "browser_action": {
        "default_icon": {
            "16": "images\/icon16.png",
            "48": "images\/icon48.png",
            "128": "images\/icon128.png"
        }
    },
    "permissions": [
        "activeTab"
    ],
    "background": {
        "scripts": [
            "script.js"
        ],
        "persistent": false
    },
    "manifest_version": 2
}