Multi Forward for Gmail

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "minimum_chrome_version": "37",
    "name": "Multi Forward for Gmail",
    "version": "3.0",
    "permissions": [
        "identity",
        "storage"
    ],
    "browser_action": {
        "default_icon": "icons\/128.png",
        "default_title": "Multi-Forward For Gmail",
        "default_popup": "html\/popup.html"
    },
    "icons": {
        "128": "icons\/128.png"
    },
    "background": {
        "scripts": [
            "js\/background.js"
        ]
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/mail.google.com\/*"
            ],
            "js": [
                "js\/content_script.js"
            ],
            "css": [
                "css\/content_script.css"
            ]
        }
    ],
    "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhSzzwzhfm9aOlPkC1638ZLgkQuj4y4rJfORmqcsoLVyxi+of4ULh\/rzLr3pD7kqpYSzE46OnOkIsJk8otCJG06zQs4RFwrbB8ErjQ6tulViAObBP4qAsurxD11qvgERZdQvY0TZrj8+wJC9EvgboP1v9aJimeSA0NL7BbtSl8hQXUN\/rVSIoC9kPkfM9eZpxfqppjuRbX4ULRp2cpkttixa\/2QJiaX0gc9b87xP7M7kKmbzUxLBlu+0zFDviXasuA5GS2AZ8ET+jPo6xKBkc8RNH25+jCICMQwcjpGvffJJZCVlXIW3LrtRyh1i2lm3zUvOUHlIehc\/JYo6RGtkDDwIDAQAB",
    "web_accessible_resources": [
        "icons\/*"
    ]
}